{"id":44926,"date":"2022-11-23T16:48:46","date_gmt":"2023-05-02T10:59:40","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44926-2\/"},"modified":"2024-04-29T02:09:22","modified_gmt":"2024-04-28T18:09:22","slug":"44926-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44926-2\/","title":{"rendered":""},"content":{"rendered":"

\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09<\/h1>\n

\u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u8003\u306b\u3057\u3066\u3001\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09\u306e\u624b\u9806\u3092\u307e\u3068\u3081\u3066\u3044\u308b\u3002<\/p>\n

 <\/p>\n

\u5909\u6570\u3068\u53ef\u5909\u6027<\/h2>\n

\u5909\u6570\u306b\u3064\u3044\u3066<\/h3>\n

\u5909\u6570\u306f\u6a19\u6e96\u3067\u4e0d\u5909\u306b\u306a\u308b\u3002<\/p>\n

\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u306f\u3001\u4e0b\u8a18\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n

\u7b2c2\u7ae0\u3067\u89e6\u308c\u305f\u901a\u308a\u3001\u5909\u6570\u306f\u6a19\u6e96\u3067\u4e0d\u5909\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3053\u308c\u306f\u3001 Rust\u304c\u63d0\u4f9b\u3059\u308b\u5b89\u5168\u6027\u3084\u7c21\u4fbf\u306a\u4e26\u884c\u6027\u306e\u5229\u70b9\u3092\u4eab\u53d7\u3059\u308b\u5f62\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306e\u9078\u629e\u306e1\u3064\u3067\u3059\u3002<\/p><\/blockquote>\n

\u5909\u6570\u304c\u4e0d\u5909\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n

\u65b0\u3057\u304f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b<\/p>\n

vscode \u279c \/workspaces\/rust_devcontainer (<\/span>master)<\/span> $ <\/span>cargo new variable\r\n     Created binary (<\/span>application)<\/span> `<\/span>variable`<\/span> package\r\nvscode \u279c \/workspaces\/rust_devcontainer (<\/span>master)<\/span> $ <\/span>\r\nvscode \u279c \/workspaces\/rust_devcontainer (<\/span>master)<\/span> $<\/span>\r\n<\/code><\/pre>\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> x<\/span> =<\/span> 5<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of x is: {}\"<\/span>,<\/span> x<\/span>);<\/span>     \/\/ x\u306e\u5024\u306f{}\u3067\u3059<\/span>\r\n    x<\/span> =<\/span> 6<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of x is: {}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff09\u30a8\u30e9\u30fc\u300c\u4e0d\u5909\u5909\u6570x\u306b2\u56de\u4ee3\u5165\u3067\u304d\u306a\u3044\u300d\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\nerror[E0384]: cannot assign twice to immutable variable `<\/span>x`<\/span>\r\n --<\/span>><\/span> src\/main.rs:4:5\r\n  |\r\n2 |     let <\/span>x =<\/span> 5;<\/span>\r\n  |         -\r\n  |         |\r\n  |         first assignment to `<\/span>x`<\/span>\r\n  |         help<\/span>: consider making this binding mutable: `<\/span>mut x`<\/span>\r\n3 |     println!(<\/span>\"The value of x is: {}\"<\/span>, x)<\/span>;<\/span>     \/\/ x\u306e\u5024\u306f{}<\/span>\u3067\u3059\r\n4 |     x =<\/span> 6;<\/span>\r\n  |     ^^^^^ cannot assign twice to immutable variable\r\n\r\nFor more information about this error, try `<\/span>rustc --explain<\/span> E0384`<\/span>.<\/span>\r\nerror: could not compile `<\/span>variable`<\/span> (<\/span>bin \"variable\"<\/span>)<\/span> due to previous error\r\n<\/code><\/pre>\n
\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u5909\u6570\u3092\u53ef\u5909\u306b\u3057\u305f\u3044\u3053\u3068\u3082\u3042\u308b\u3068\u601d\u308f\u308c\u308b\u3002
\n\u305d\u306e\u5834\u5408\u306f\u3001\u5909\u6570\u540d\u306e\u524d\u306b mut \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u53ef\u5909\u306b\u3067\u304d\u308b\u3002<\/p>\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> x<\/span> =<\/span> 5<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of x is: {}\"<\/span>,<\/span> x<\/span>);<\/span>     \/\/ x\u306e\u5024\u306f{}\u3067\u3059<\/span>\r\n    x<\/span> =<\/span> 6<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of x is: {}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff09x\u306e\u5024\u300c5\u300d\u3068\u4ee3\u5165\u5f8c\u306ex\u306e\u5024\u300c6\u300d\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of x is: 5\r\nThe value of x is: 6\r\n<\/code><\/pre>\n
\u5909\u6570\u3068\u5b9a\u6570\u306e\u9055\u3044<\/h3>\n
\u5b9a\u6570\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001let\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4ee3\u308f\u308a\u306b\u3001const\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002
\n\u307e\u305f\u3001\u5b9a\u6570\u306f\u4e0d\u5909\u306e\u305f\u3081mut\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002<\/p>\n
\u5b9a\u6570\u306f\u3001\u3069\u3093\u306a\u7bc4\u56f2\u3067\u3082\u5b9a\u7fa9\u3067\u304d\u308b\u3002\u516c\u5f0f\u306b\u306f\u4e0b\u8a18\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n
\u5b9a\u6570\u306f\u3069\u3093\u306a\u30b9\u30b3\u30fc\u30d7\u3067\u3082\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30b3\u30fc\u30d7\u3082\u542b\u3081\u3066\u3067\u3059\u3002
\n\u306a\u306e\u3067\u3001 \u3044\u308d\u3093\u306a\u3068\u3053\u308d\u3067\u4f7f\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u5024\u3092\u5b9a\u7fa9\u3059\u308b\u306e\u306b\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002<\/p><\/blockquote>\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
const<\/span> MAX_POINTS<\/span>:<\/span> u32<\/span> =<\/span> 100_000<\/span>;<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    const<\/span> X_VALUE<\/span>:<\/span> i32<\/span> =<\/span> 5<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of X_VALUE is: {}\"<\/span>,<\/span> X_VALUE<\/span>);<\/span>     \/\/ x\u306e\u5024\u306f{}\u3067\u3059<\/span>\r\n    println!<\/span>(<\/span>\"The value of MAX_POINTS is: {}\"<\/span>,<\/span> MAX_POINTS<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff09X_VALUE\u306e\u5024\u300c5\u300d\u3068MAX_POINTS\u306e\u5024\u300c100000\u300d\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of X_VALUE is: 5\r\nThe value of MAX_POINTS is: 100000\r\n<\/code><\/pre>\n
\u30b7\u30e3\u30fc\u30c9\u30a4\u30f3\u30b0<\/h3>\n
\u524d\u306b\u5b9a\u7fa9\u3057\u305f\u5909\u6570\u3068\u540c\u3058\u5909\u6570\u540d\u3092\u5ba3\u8a00\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002
\n\u524d\u3068\u540c\u3058\u5909\u6570\u540d\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5834\u5408\u3001\u65b0\u3057\u304f\u5b9a\u7fa9\u3055\u308c\u305f\u5909\u6570\u306f\u3001\u524d\u306e\u5909\u6570\u3092\u8986\u3044\u96a0\u3057\u3066\u3057\u307e\u3046\u3002<\/p>\n
\u516c\u5f0f\u306b\u306f\u4e0b\u8a18\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n
Rustacean\u306f\u3053\u308c\u3092\u6700\u521d\u306e\u5909\u6570\u306f\u3001 2\u756a\u76ee\u306e\u5909\u6570\u306b\u8986\u3044\u96a0\u3055\u308c\u305f\u3068\u8a00\u3044\u3001\u3053\u306e\u5909\u6570\u3092\u4f7f\u7528\u3057\u305f\u969b\u306b\u30012\u756a\u76ee\u306e\u5909\u6570\u306e\u5024\u304c\u73fe\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002 \u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u540c\u3058\u5909\u6570\u540d\u3092\u7528\u3044\u3066\u5909\u6570\u3092\u8986\u3044\u96a0\u3057\u3001let\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059:<\/p><\/blockquote>\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> x<\/span> =<\/span> 5<\/span>;<\/span>\r\n\r\n    let<\/span> x<\/span> =<\/span> x<\/span> +<\/span> 1<\/span>;<\/span>\r\n\r\n    {<\/span>\r\n        let<\/span> x<\/span> =<\/span> x<\/span> *<\/span> 2<\/span>;<\/span>\r\n        println!<\/span>(<\/span>\"The value of x in the inner scope is: {}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    println!<\/span>(<\/span>\"The value of x is: {}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of x in <\/span>the inner scope is: 12\r\nThe value of x is: 6\r\n<\/code><\/pre>\n
\u516c\u5f0f\u306f\u4e0b\u8a18\u306e\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u3002<\/p>\n
\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u307e\u305a\u3001x\u30925\u3068\u3044\u3046\u5024\u306b\u675f\u7e1b\u3057\u307e\u3059\u3002\u305d\u308c\u304b\u3089let x =\u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u3067x\u3092\u8986\u3044\u96a0\u3057\u3001 \u5143\u306e\u5024\u306b1\u3092\u52a0\u3048\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001x\u306e\u5024\u306f6\u306b\u306a\u308a\u307e\u3059\u3002 3\u756a\u76ee\u306elet\u6587\u3082x\u3092\u8986\u3044\u96a0\u3057\u3001\u4ee5\u524d\u306e\u5024\u306b2\u3092\u304b\u3051\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001x\u306e\u6700\u7d42\u7684\u306a\u5024\u306f12\u306b\u306a\u308a\u307e\u3059\u3002 \u62ec\u5f27\u3092\u629c\u3051\u308b\u3068\u30b7\u30e3\u30c9\u30fc\u30a4\u30f3\u30b0\u306f\u7d42\u4e86\u3057\u3001x\u306e\u5024\u306f\u5143\u306e6\u306b\u623b\u308a\u307e\u3059\u3002 \u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8d70\u3089\u305b\u305f\u3089\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u51fa\u529b\u3059\u308b\u3067\u3057\u3087\u3046\u3002<\/p><\/blockquote>\n
\u91cd\u8981\u306a\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\u306f\u3001\u5024\u3092\u304b\u3048\u3064\u3064\u3001\u540c\u3058\u5909\u6570\u540d\u3092\u4f7f\u3044\u307e\u308f\u305b\u308b\u3068\u3053\u308d\u306b\u306a\u308b\u3002<\/p>\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> spaces<\/span> =<\/span> \"   \"<\/span>;<\/span>\r\n    let<\/span> spaces<\/span> =<\/span> spaces<\/span>.len<\/span>();<\/span>\r\n    let<\/span> spaces<\/span> =<\/span> spaces<\/span> +<\/span> 1<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of spaces : {}\"<\/span>,<\/span> spaces<\/span>);<\/span>\r\n\r\n    let<\/span> mut<\/span> mut_spaces<\/span> =<\/span> \"   \"<\/span>;<\/span>\r\n    mut_spaces<\/span> =<\/span> mut_spaces<\/span>.len<\/span>();<\/span>\r\n    let<\/span> mut_spaces<\/span> =<\/span> mut_spaces<\/span> +<\/span> 1<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of mut_spaces : {}\"<\/span>,<\/span> mut_spaces<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\nerror[E0308]: mismatched types\r\n --<\/span>><\/span> src\/main.rs:8:18\r\n  |\r\n7 |     let <\/span>mut mut_spaces =<\/span> \"   \"<\/span>;<\/span>\r\n  |                          -----<\/span> expected due to this value\r\n8 |     mut_spaces =<\/span> mut_spaces.len()<\/span>;<\/span>\r\n  |                  ^^^^^^^^^^^^^^^^ expected `<\/span>&str`<\/span>, found `<\/span>usize`<\/span>\r\n  |\r\nhelp<\/span>: try removing the method call\r\n  |\r\n8 -     mut_spaces =<\/span> mut_spaces.len()<\/span>;<\/span>\r\n8 +     mut_spaces =<\/span> mut_spaces;<\/span>\r\n  |\r\n\r\nerror[E0369]: cannot add `<\/span>{<\/span>integer}<\/span>`<\/span> to `<\/span>&str`<\/span>\r\n --<\/span>><\/span> src\/main.rs:9:33\r\n  |\r\n9 |     let <\/span>mut_spaces =<\/span> mut_spaces + 1;<\/span>\r\n  |                      ----------<\/span> ^ - {<\/span>integer}<\/span>\r\n  |                      |\r\n  |                      &str\r\n\r\nSome errors have detailed explanations: E0308, E0369.\r\nFor more information about an error, try `<\/span>rustc --explain<\/span> E0308`<\/span>.<\/span>\r\nerror: could not compile `<\/span>variable`<\/span> (<\/span>bin \"variable\"<\/span>)<\/span> due to 2 previous errors\r\nvscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span>\r\n<\/code><\/pre>\n
\u30c7\u30fc\u30bf\u578b<\/h2>\n
Rust\u306f\u3001\u9759\u7684\u578b\u4ed8\u304d\u8a00\u8a9e\u306b\u306a\u308b\u305f\u3081\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5909\u6570\u306e\u578b\u304c\u5224\u660e\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30b9\u30ab\u30e9\u30fc\u578b<\/h3>\n
\u5358\u72ec\u306e\u5024\u3092\u8868\u3059\u3002
\nRust\u306b\u306f\u30014\u3064\u306e\u30b9\u30ab\u30e9\u30fc\u578b\u304c\u3042\u308b\u3002<\/p>\n
    \n
  • \n
      \u6574\u6570\u578b<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u6d6e\u52d5\u5c0f\u6570\u70b9\u6570<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \n
          • \n
              \u8ad6\u7406\u5024<\/ul>\n<\/li>\n<\/ul>\n
               <\/p>\n
                \u6587\u5b57<\/ul>\n
                \u6574\u6570\u578b<\/p>\n
                \u6574\u6570\u3068\u306f\u3001\u5c0f\u6570\u70b9\u306e\u306a\u3044\u6570\u5024\u306e\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n
                \u7b26\u53f7\u4ed8\u304d\u304b\u7b26\u53f7\u306a\u3057\u304b\u3092\u9078\u3076\u3053\u3068\u304c\u3067\u304d\u3001\u660e\u793a\u7684\u306a\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3067\u304d\u308b\u3002<\/p>\n
                \n
                \u30d3\u30c3\u30c8\u306e\u5927\u304d\u3055\u7b26\u53f7\u4ed8\u304d(+-)\u7b26\u53f7\u306a\u30578biti8u816biti16u1632biti32u3264biti64u64architecture sizeisizeusize<\/div>\n<\/div>\n
                \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9)<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ \u7b26\u53f7\u4ed8\u304d<\/span>\r\n    let<\/span> bit_8<\/span>:<\/span>i8<\/span> =<\/span> 8<\/span>;<\/span>\r\n    let<\/span> bit_16<\/span>:<\/span>i16<\/span> =<\/span> 16<\/span>;<\/span>\r\n    let<\/span> bit_32<\/span>:<\/span>i32<\/span> =<\/span> 32<\/span>;<\/span>\r\n    let<\/span> bit_64<\/span>:<\/span>i64<\/span> =<\/span> 64<\/span>;<\/span>\r\n    let<\/span> bit_arch<\/span>:<\/span>isize<\/span> =<\/span> -<\/span>64<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_8 : {}\"<\/span>,<\/span> bit_8<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_16 : {}\"<\/span>,<\/span> bit_16<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_32 : {}\"<\/span>,<\/span> bit_32<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_64 : {}\"<\/span>,<\/span> bit_64<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_arch : {}\"<\/span>,<\/span> bit_arch<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"====================================\"<\/span>);<\/span>\r\n    \/\/ \u7b26\u53f7\u306a\u3057<\/span>\r\n    let<\/span> ubit_8<\/span>:<\/span>u8<\/span> =<\/span> 8<\/span>;<\/span>\r\n    let<\/span> ubit_16<\/span>:<\/span>u16<\/span> =<\/span> 16<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of ubit_8 : {}\"<\/span>,<\/span> ubit_8<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of ubit_16 : {}\"<\/span>,<\/span> ubit_16<\/span>);<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.13s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of bit_8 : 8\r\nThe value of bit_16 : 16\r\nThe value of bit_32 : 32\r\nThe value of bit_64 : 64\r\nThe value of bit_arch : -64<\/span>\r\n====================================<\/span>\r\nThe value of ubit_8 : 8\r\nThe value of ubit_16 : 16\r\n<\/code><\/pre>\n
                \u6574\u6570\u30ea\u30c6\u30e9\u30eb<\/p>\n
                \u6574\u6570\u30ea\u30c6\u30e9\u30eb\u306f\u578b\u3092\u5f8c\u308d\u306b\u660e\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n
                \n
                \u6574\u6570\u30ea\u30c6\u30e9\u30eb\u88dc\u8db315i8i8\u578b\u306e10\u9032\u657011u16u16\u578b\u306e8\u9032\u657011i32i32\u578b\u306e16\u9032\u657011u64u64\u578b\u306e2\u9032\u6570123_456\u6570\u5024\u306e\u9593\u306b\u30a2\u30f3\u30c0\u30fc\u30d0\u30fc\u3092\u5165\u308c\u3089\u308c\u308b15_i8\u578b\u306e\u9593\u306b\u30a2\u30f3\u30c0\u30fc\u30d0\u30fc\u3092\u5165\u308c\u3089\u308c\u308b0x_A\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u9593\u306b\u30a2\u30f3\u30c0\u30fc\u30d0\u30fc\u3092\u5165\u308c\u3089\u308c\u308b\u4f8b\uff0916\u9032\u6570<\/div>\n<\/div>\n
                \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> bit_8<\/span> =<\/span> 15i8<\/span>;<\/span>\r\n    let<\/span> bit_16<\/span> =<\/span> 11u16<\/span>;<\/span>\r\n    let<\/span> bit_32<\/span> =<\/span> 11i32<\/span>;<\/span>\r\n    let<\/span> bit_<\/span> =<\/span> 123_456<\/span>;<\/span>\r\n    let<\/span> bit_8_<\/span> =<\/span> 15_i8<\/span>;<\/span>\r\n    let<\/span> bit_prefix<\/span> =<\/span> 0x_A<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_8 : {}\"<\/span>,<\/span> bit_8<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_16 : {}\"<\/span>,<\/span> bit_16<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_32 : {}\"<\/span>,<\/span> bit_32<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_ : {}\"<\/span>,<\/span> bit_<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_8_ : {}\"<\/span>,<\/span> bit_8_<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of bit_prefix : {}\"<\/span>,<\/span> bit_prefix<\/span>);<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of bit_8 : 15\r\nThe value of bit_16 : 11\r\nThe value of bit_32 : 11\r\nThe value of bit_ : 123456\r\nThe value of bit_8_ : 15\r\nThe value of bit_prefix : 10\r\n<\/code><\/pre>\n
                \u6d6e\u52d5\u5c0f\u6570\u70b9\u6570<\/p>\n
                Rust\u306e\u6d6e\u52d5\u5c0f\u6570\u70b9\u306b\u306f\u30012\u7a2e\u985e\u306e\u57fa\u672c\u578b\u304c\u3042\u308b\u3002<\/p>\n
                \n
                \u30d3\u30c3\u30c8\u306e\u5927\u304d\u3055\u6d6e\u52d5\u5c0f\u6570\u70b9\u657032bitf3264bitf64<\/div>\n<\/div>\n
                \u203b\u57fa\u6e96\u578b\u306ff64\u306b\u306a\u308b\u3002<\/p>\n
                \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> x<\/span> =<\/span> 2.2<\/span>;<\/span> \/\/ f64<\/span>\r\n    let<\/span> y<\/span>:<\/span> f32<\/span> =<\/span> 3.2<\/span>;<\/span> \/\/ f32<\/span>\r\n    println!<\/span>(<\/span>\"The value of x : {}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"The value of y : {}\"<\/span>,<\/span> y<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of x : 2.2\r\nThe value of y : 3.2\r\n<\/code><\/pre>\n
                \u6570\u5024\u6f14\u7b97<\/p>\n
                Rust\u306b\u306f\u3001\u6a19\u6e96\u7684\u306a\u6570\u5b66\u6f14\u7b97\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
                  \n
                • \n
                    \u8db3\u3057\u7b97<\/ul>\n<\/li>\n<\/ul>\n
                     <\/p>\n
                      \n
                    • \n
                        \u5f15\u304d\u7b97<\/ul>\n<\/li>\n<\/ul>\n
                         <\/p>\n
                          \n
                        • \n
                            \u639b\u3051\u7b97<\/ul>\n<\/li>\n<\/ul>\n
                             <\/p>\n
                              \n
                            • \n
                                \u5272\u308a\u7b97<\/ul>\n<\/li>\n<\/ul>\n
                                 <\/p>\n
                                  \u4f59\u308a<\/ul>\n
                                  \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                  fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ addition<\/span>\r\n    \/\/ \u8db3\u3057\u7b97<\/span>\r\n    let<\/span> sum<\/span> =<\/span> 5<\/span> +<\/span> 10<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>sum<\/span>);<\/span>\r\n\r\n    \/\/ subtraction<\/span>\r\n    \/\/ \u5f15\u304d\u7b97<\/span>\r\n    let<\/span> difference<\/span> =<\/span> 95.5<\/span> -<\/span> 4.3<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>difference<\/span>);<\/span>\r\n\r\n    \/\/ multiplication<\/span>\r\n    \/\/ \u639b\u3051\u7b97<\/span>\r\n    let<\/span> product<\/span> =<\/span> 4<\/span> *<\/span> 30<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>product<\/span>);<\/span>\r\n\r\n    \/\/ division<\/span>\r\n    \/\/ \u5272\u308a\u7b97<\/span>\r\n    let<\/span> quotient<\/span> =<\/span> 56.7<\/span> \/<\/span> 32.2<\/span>;<\/span>\r\n    let<\/span> floored<\/span> =<\/span> 2<\/span> \/<\/span> 3<\/span>;<\/span> \/\/ Results in 0<\/span>\r\n                         \/\/ \u7d50\u679c\u306f0<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>quotient<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>floored<\/span>);<\/span>\r\n\r\n    \/\/ remainder<\/span>\r\n    \/\/ \u4f59\u308a<\/span>\r\n    let<\/span> remainder<\/span> =<\/span> 43<\/span> %<\/span> 5<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>remainder<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                  \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                  vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.13s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\n15\r\n91.2\r\n120\r\n1.7608695652173911\r\n0\r\n3\r\n<\/code><\/pre>\n
                                  \u8ad6\u7406\u5024\u578b<\/p>\n
                                  true\/false\u306b\u3066\u8ad6\u7406\u578b\u306e\u5024\u3092\u5b9a\u7fa9\u3067\u304d\u308b\u3002
                                  \n\u8ad6\u7406\u578b\u306f\u3001bool\u3068\u6307\u5b9a\u3067\u304d\u308b\u3002<\/p>\n
                                  \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                  fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> t<\/span> =<\/span> true<\/span>;<\/span>\r\n    let<\/span> f<\/span>:<\/span> bool<\/span> =<\/span> false<\/span>;<\/span>\r\n\r\n\t\t\/\/ if\u6587\u3067\u5224\u5b9a<\/span>\r\n    if<\/span> t<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"true\"<\/span>);<\/span>\r\n    }<\/span>\r\n\t\t\r\n    if<\/span> f<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"true\"<\/span>);<\/span>\r\n    }<\/span>else<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"false\"<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                  \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                  vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.13s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\ntrue\r\nfalse<\/span>\r\n<\/code><\/pre>\n
                                  \u6587\u5b57\u578b<\/p>\n
                                  Rust\u306b\u306f\u3001\u6587\u5b57\u5217\u3082\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002
                                  \nRust\u306e\u6587\u5b57\u5217\u306f\u3001char\u578b\u30fbstr\u578b\u30fbString\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n
                                  \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                  fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ str\u578b\u306b\u3066\u5b9a\u7fa9<\/span>\r\n    let<\/span> string<\/span> =<\/span> \"Hello, World\"<\/span>;<\/span>\r\n\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span>string<\/span>);<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
                                  \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                  vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nHello, World\r\n<\/code><\/pre>\n
                                  char\u578b\u30fbstr\u578b\u30fbString\u578b\u306e\u5185\u5bb9\u306f\u3001\u4e0b\u8a18\u306e\u8a18\u4e8b\u306b\u3066\u7c21\u6f54\u306b\u307e\u3068\u3081\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n
                                  \u53c2\u8003URL\uff1ahttps:\/\/zenn.dev\/moreyhat\/articles\/1d85c62e93ae86<\/p>\n
                                  \u8907\u5408\u578b<\/h3>\n
                                  \u8907\u6570\u306e\u5024\u3092\u4e00\u3064\u306e\u5024\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u304c\u8907\u5408\u578b\u306b\u306a\u308b\u3002
                                  \n\u8907\u5408\u578b\u306b\u306f\u3001\uff12\u3064\u306e\u57fa\u672c\u7684\u306a\u3082\u306e\u304c\u3042\u308b\u3002<\/p>\n
                                    \n
                                  • \n
                                      \u30bf\u30d7\u30eb<\/ul>\n<\/li>\n<\/ul>\n
                                       <\/p>\n
                                        \u914d\u5217<\/ul>\n
                                        \u30bf\u30d7\u30eb<\/p>\n
                                        \u4e38\u304b\u3063\u3053\uff08\uff09\u306e\u4e2d\u306b\u8907\u6570\u306e\u578b\u306e\u5024\u3092\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002
                                        \n\u7279\u5b9a\u306e\u5024\u3092\u53d6\u308a\u51fa\u3059\u3068\u304d\u306f\u3001\u30bf\u30d7\u30eb\u306e\u3042\u3068\u306b\u30c9\u30c3\u30c8\u3092\u3064\u3051\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3002<\/p>\n
                                        \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                        fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> tup<\/span>:<\/span> (<\/span>i32<\/span>,<\/span> f64<\/span>,<\/span> u8<\/span>)<\/span> =<\/span> (<\/span>-<\/span>500<\/span>,<\/span> 6.4<\/span>,<\/span> 1<\/span>);<\/span>\r\n\t\tprintln!<\/span>(<\/span>\"{}, {}, {}\"<\/span>,<\/span> tup<\/span>.0<\/span>,<\/span> tup<\/span>.1<\/span> ,<\/span>tup<\/span>.2<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u5b9f\u884c\u7d50\u679c)<\/p>\n
                                        vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\n-500<\/span>, 6.4, 1\r\n<\/code><\/pre>\n
                                        \u30bf\u30d7\u30eb\u304b\u3089\u500b\u3005\u306e\u5024\u3092\u53d6\u308a\u51fa\u3057\u3066\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n
                                        \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                        fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> tup<\/span> =<\/span> (<\/span>500<\/span>,<\/span> 6.4<\/span>,<\/span> 1<\/span>);<\/span>\r\n\r\n    let<\/span> (<\/span>_x<\/span>,<\/span> _y<\/span>,<\/span> _z<\/span>)<\/span> =<\/span> tup<\/span>;<\/span>\r\n\r\n    println!<\/span>(<\/span>\"The value of _x is: {}\"<\/span>,<\/span> _x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                        vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nThe value of _x is: 500\r\n<\/code><\/pre>\n
                                        \u914d\u5217<\/p>\n
                                        \u914d\u5217\u306b\u3088\u3063\u3066\u3082\u3001\u8907\u6570\u306e\u5024\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002
                                        \n\u30bf\u30d7\u30eb\u3068\u7570\u306a\u308a\u3001\u914d\u5217\u306e\u8981\u7d20\u306f\u540c\u3058\u578b\u306e\u5024\u3067\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002
                                        \n\u7279\u5b9a\u306e\u5024\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u89d2\u30ab\u30c3\u30b3[ ]\u306e\u4e2d\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3002<\/p>\n
                                        \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09<\/p>\n
                                        fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> a<\/span> =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>];<\/span>\r\n    println!<\/span>(<\/span>\"a[0]\u306e\u5024\u306f\u3001{}\"<\/span>,<\/span> a<\/span>[<\/span>0<\/span>]);<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                        vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\na[0]\u306e\u5024\u306f\u30011\r\n<\/code><\/pre>\n
                                        \u914d\u5217\u306b\u3001\u8981\u7d20\u306e\u578b\u3068\u8981\u7d20\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002
                                        \n\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff09\u7b26\u53f7\u3042\u308a32bit\u306e\u6570\u5024\u30925\u3064\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9\u3002[i32; 5]<\/p>\n
                                        fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> a<\/span>:<\/span> [<\/span>i32<\/span>;<\/span> 5<\/span>]<\/span> =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>];<\/span>\r\n    let<\/span> first<\/span> =<\/span> a<\/span>[<\/span>0<\/span>];<\/span>\r\n    let<\/span> five<\/span>=<\/span> a<\/span>[<\/span>4<\/span>];<\/span>\r\n\t\tprintln!<\/span>(<\/span>\"first \u306e\u5024\u306f\u3001{}\"<\/span>,<\/span> first<\/span> );<\/span>\r\n\t\tprintln!<\/span>(<\/span>\"five\u306e\u5024\u306f\u3001{}\"<\/span>,<\/span> five<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u5b9f\u884c\u7d50\u679c\uff09<\/p>\n
                                        vscode \u279c \/workspaces\/rust_devcontainer\/variable (<\/span>master)<\/span> $ <\/span>cargo run\r\n   Compiling variable v0.1.0 (<\/span>\/workspaces\/rust_devcontainer\/variable)<\/span>\r\n    Finished dev [<\/span>unoptimized + debuginfo] target(<\/span>s)<\/span> in <\/span>0.12s\r\n     Running `<\/span>target\/debug\/variable`<\/span>\r\nfirst \u306e\u5024\u306f\u30011\r\nfive\u306e\u5024\u306f\u30015\r\n<\/code><\/pre>\n
                                        \u4ee5\u4e0a\u304c\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09\u306b\u306a\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                                        \u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09 \u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u8003\u306b\u3057\u3066\u3001\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09\u306e\u624b\u9806\u3092\u307e\u3068\u3081\u3066 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44926","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44926-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09 \u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u8003\u306b\u3057\u3066\u3001\u57fa\u672c\u6587\u6cd5\uff08\u5909\u6570\u3068\u53ef\u5909\u6027\/\u30c7\u30fc\u30bf\u578b\uff09\u306e\u624b\u9806\u3092\u307e\u3068\u3081\u3066 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44926-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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