{"id":45452,"date":"2023-03-09T00:17:43","date_gmt":"2023-12-17T15:37:03","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45452-2\/"},"modified":"2024-04-29T17:59:10","modified_gmt":"2024-04-29T09:59:10","slug":"45452-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45452-2\/","title":{"rendered":""},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/h2>\n

Rust\u306b\u306f\u30a4\u30c6\u30ec\u30fc\u30bf\u3068\u3044\u3046\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u578b\u306b\u5bfe\u3059\u308b\u4fbf\u5229\u306a\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3067\u3059\u304c\u5b9f\u969b\u306b\u4f7f\u3063\u3066\u307f\u308b\u3068\u578b\u304c\u5024\u304b\u53c2\u7167\u304b\u3067\u7d50\u69cb\u6238\u60d1\u3044\u307e\u3059\u3002
\n\u307e\u305f\u30a4\u30c6\u30ec\u30fc\u30bf\u306b\u3082\u4f55\u7a2e\u985e\u304b\u3042\u308a\u3001\u3084\u3084\u3053\u3057\u3044\u306e\u3067\u8abf\u3079\u305f\u3053\u3068\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n

\u30a4\u30c6\u30ec\u30fc\u30bf\u3068\u306f<\/h2>\n

\u30a4\u30c6\u30ec\u30fc\u30bf\u3068\u306f\u914d\u5217\u3084\u30d9\u30af\u30bf\u7b49\u306e\u8907\u6570\u306e\u8981\u7d20\u3092\u6301\u3064\u30c7\u30fc\u30bf\u578b\u306b\u5bfe\u3057\u3066
\n\u5148\u982d\u304b\u3089\u9806\u756a\u306b\u5404\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u4ed5\u7d44\u307f\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n

\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u3046\u3053\u3068\u3067\u6dfb\u3048\u5b57\u3092\u4f7f\u308f\u305a\u306b\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u308a\u3001\u8907\u96d1\u306a\u51e6\u7406\u3092\u7c21\u6f54\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

iter<\/h2>\n

\u30a4\u30c6\u30ec\u30fc\u30bf\u306fiter\u3067\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002
\niter\u304c\u8fd4\u3059\u306e\u306f\u5404\u8981\u7d20\u3078\u306e\u53c2\u7167\u3067\u3059\u3002<\/p>\n

let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nfor<\/span> x<\/span> in<\/span> nums<\/span>.iter<\/span>()<\/span> {<\/span> \/\/\u5909\u6570x\u306e\u578b\u306f&i32<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u4e0b\u3067\u306f\u3088\u304f\u4f7f\u3046\u95a2\u6570\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
for_each<\/h3>\n
\u5404\u8981\u7d20\u306b\u5bfe\u3057\u3066\u51e6\u7406\u3092\u9069\u7528\u3055\u305b\u305f\u3044\u5834\u5408\u306ffor_each\u3082\u4f7f\u3048\u307e\u3059\u3002
\n\u5f15\u6570\u306b\u30af\u30ed\u30fc\u30b8\u30e3(\u7121\u540d\u95a2\u6570)\u3092\u6e21\u3057\u307e\u3059\u3002
\n\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306ffor_each\u3067\u7f6e\u304d\u63db\u3048\u308b\u3068\u4e0b\u8a18\u306e\u69d8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
nums<\/span>.iter<\/span>()<\/span>.for_each<\/span>(|<\/span>x<\/span>:<\/span> &<\/span>i32<\/span>|<\/span> println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>));<\/span>\r\n<\/code><\/pre>\n
sum<\/h3>\n
sum\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u5185\u306e\u6570\u5024\u306e\u5408\u8a08\u3092\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\n\/\/ 10<\/span>\r\nlet<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.sum<\/span>();<\/span>\r\n<\/code><\/pre>\n
fold<\/h3>\n
fold\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u5185\u306e\u8981\u7d20\u3092\u5143\u306b1\u3064\u306e\u8fd4\u308a\u5024\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u7b2c1\u5f15\u6570\u304c\u521d\u671f\u5024\u3001\u7b2c2\u5f15\u6570\u304c\u5404\u8981\u7d20\u306b\u9069\u7528\u3055\u305b\u308b\u30af\u30ed\u30fc\u30b8\u30e3\u3067\u3059\u3002
\n\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u7b2c1\u5f15\u6570\u306f\u5404\u8981\u7d20\u306b\u9069\u7528\u3055\u308c\u308b\u6bce\u306b\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u30a4\u30c6\u30ec\u30fc\u30bf\u5185\u306e\u6570\u5024\u306e\u7dcf\u4e57\u3092\u6c42\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span> =<\/span> vec!<\/span>[<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>];<\/span>\r\n\/\/ 120<\/span>\r\nlet<\/span> total<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.fold<\/span>(<\/span>1<\/span>,<\/span> |<\/span>total<\/span>:<\/span> i32<\/span>,<\/span> x<\/span>:<\/span> &<\/span>i32<\/span>|<\/span> total<\/span> *<\/span> x<\/span>);<\/span> \r\n<\/code><\/pre>\n
map<\/h3>\n
map\u3092\u4f7f\u3046\u3068\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u5404\u8981\u7d20\u306b\u5bfe\u3057\u3066\u51e6\u7406\u3092\u9069\u7528\u3055\u305b\u3066\u3001\u65b0\u3057\u3044\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u6570\u5024\u6587\u5b57\u5217\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u304b\u3089\u6570\u5024\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u751f\u6210\u3057\u3066\u7dcf\u548c\u3092\u6c42\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n
let<\/span> str_nums<\/span>:<\/span> Vec<\/span><&<\/span>str<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>\"1\"<\/span>,<\/span> \"3\"<\/span>,<\/span> \"5\"<\/span>,<\/span> \"7\"<\/span>,<\/span> \"9\"<\/span>];<\/span>\r\n\/\/ 25<\/span>\r\nlet<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> str_nums<\/span>.iter<\/span>()<\/span>.map<\/span>(|<\/span>x<\/span>:<\/span> &&<\/span>str<\/span>|<\/span> x<\/span>.parse<\/span>::<\/span><<\/span>i32<\/span>><\/span>()<\/span>.unwrap<\/span>())<\/span>.sum<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u307e\u305fcollect\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u30d9\u30af\u30bf\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\n\/\/ [10, 11, 12, 13, 14]<\/span>\r\nlet<\/span> nums2<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.map<\/span>(|<\/span>x<\/span>:<\/span> &<\/span>i32<\/span>|<\/span> x<\/span> +<\/span> 10<\/span>)<\/span>.collect<\/span>();<\/span>\r\n<\/code><\/pre>\n
filter<\/h3>\n
filter\u3067\u6761\u4ef6\u306b\u4e00\u81f4\u3059\u308b\u8981\u7d20\u3092\u62bd\u51fa\u3067\u304d\u307e\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002
\n\u30af\u30ed\u30fc\u30b8\u30e3\u306b\u6e21\u3055\u308c\u308b\u8981\u7d20\u306e\u578b\u306f\u53c2\u7167\u3078\u306e\u53c2\u7167\u306a\u306e\u3067*\u3092\u4ed8\u3051\u306a\u3044\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u304d\u307e\u305b\u3093\u3002
\n\u307e\u305f\u3001filter\u304c\u8fd4\u3059\u306e\u306f\u4e00\u81f4\u3057\u305f\u8981\u7d20\u3078\u306e\u53c2\u7167\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u3067\u3059\u3002<\/p>\n
let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nlet<\/span> nums2<\/span>:<\/span> Vec<\/span><&<\/span>i32<\/span>><\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>x<\/span>:<\/span> &&<\/span>i32<\/span>|<\/span> *<\/span>x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.collect<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u62bd\u51fa\u3057\u305f\u7d50\u679c\u3092\u5024\u306e\u30d9\u30af\u30bf\u3068\u3057\u305f\u3044\u5834\u5408\u306f\u3001cloned\u3067\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nlet<\/span> nums2<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.cloned<\/span>()<\/span>.filter<\/span>(|<\/span>x<\/span>:<\/span> &&<\/span>i32<\/span>|<\/span> *<\/span>x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.collect<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u53c2\u7167\u306e\u5206\u914d<\/h2>\n
\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570\u306b&\u3092\u4ed8\u3051\u308b\u3068\u53c2\u7167\u5916\u3057\u304c\u884c\u308f\u308c\u305f\u72b6\u614b\u3067\u5f15\u6570\u306b\u6e21\u3055\u308c\u307e\u3059\u3002
\n\u3053\u308c\u3092\u53c2\u7167\u306e\u5206\u914d\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\n\/\/ \u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570x\u306e\u578b\u306f&&i32<\/span>\r\nlet<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>x<\/span>|<\/span> *<\/span>x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.sum<\/span>();<\/span>\r\n\/\/ \u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570x\u306e\u578b\u306f&i32<\/span>\r\nlet<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>&<\/span>x<\/span>|<\/span> x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.sum<\/span>();<\/span>\r\n\/\/ \u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570x\u306e\u578b\u306fi32<\/span>\r\nlet<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>&&<\/span>x<\/span>|<\/span> x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.sum<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u53c2\u7167\u306e\u5206\u914d\u3092\u884c\u3046\u3068\u578b\u6ce8\u91c8\u306f\u5e38\u306b&_\u306b\u306a\u308a\u307e\u3059\u3002
\n\u306a\u306e\u3067\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> sum<\/span>:<\/span> i32<\/span> =<\/span> nums<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>&<\/span>x<\/span>:<\/span> &<\/span>i32<\/span>|<\/span> x<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>.sum<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u307e\u305f\u3001\u53c2\u7167\u306e\u5206\u914d\u3067\u5f15\u6570\u306e\u578b\u3092\u5024\u306b\u3059\u308b\u3068\u30b3\u30d4\u30fc\u304c\u6e21\u3055\u308c\u307e\u3059\u3002
\n\u305d\u306e\u305f\u3081Copy\u30c8\u30ec\u30a4\u30c8\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\u578b\u3060\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> strings<\/span>:<\/span> Vec<\/span><<\/span>String<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>\"A\"<\/span>.to_string<\/span>(),<\/span> \"BC\"<\/span>.to_string<\/span>(),<\/span> \"DEF\"<\/span>.to_string<\/span>()];<\/span>\r\n\/\/ String\u578b\u306fCopy\u30c8\u30ec\u30a4\u30c8\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\nlet<\/span> filtered<\/span>:<\/span> Vec<\/span><&<\/span>String<\/span>><\/span> =<\/span> strings<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>&&<\/span>s<\/span>|<\/span> s<\/span>.len<\/span>()<\/span> ==<\/span> 2<\/span>)<\/span>.collect<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u3053\u306e\u5834\u5408\u3001\u5f15\u6570\u306e\u578b\u3092\u53c2\u7167\u306b\u3059\u308b\u3068\u30b3\u30d4\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\u306e\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> filtered<\/span>:<\/span> Vec<\/span><&<\/span>String<\/span>><\/span> =<\/span> strings<\/span>.iter<\/span>()<\/span>.filter<\/span>(|<\/span>&<\/span>s<\/span>|<\/span> s<\/span>.len<\/span>()<\/span> ==<\/span> 2<\/span>)<\/span>.collect<\/span>();<\/span>\r\n<\/code><\/pre>\n
iter_mut<\/h2>\n
\u30a4\u30c6\u30ec\u30fc\u30bf\u3067\u5404\u8981\u7d20\u306e\u5024\u3092\u5909\u66f4\u3092\u3057\u305f\u3044\u5834\u5408\u306fiter_mut\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002
\niter_mut\u306f\u5404\u8981\u7d20\u3078\u306e\u53ef\u5909\u53c2\u7167\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
let<\/span> mut<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nfor<\/span> x<\/span> in<\/span> nums<\/span>.iter_mut<\/span>()<\/span> {<\/span> \/\/ \u5909\u6570x\u306e\u578b\u306f&mut i32<\/span>\r\n    *<\/span>x<\/span> *=<\/span> 2<\/span>;<\/span>\r\n}<\/span>\r\nprintln!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> nums<\/span>);<\/span> \/\/ [0, 2, 4, 6, 8]<\/span>\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092for_each\u3067\u7f6e\u304d\u63db\u3048\u308b\u3068\u4e0b\u8a18\u306e\u69d8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> mut<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nnums<\/span>.iter_mut<\/span>()<\/span>.for_each<\/span>(|<\/span>x<\/span>:<\/span> &<\/span>mut<\/span> i32<\/span>|<\/span> *<\/span>x<\/span> *=<\/span> 2<\/span>);<\/span>\r\nprintln!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> nums<\/span>);<\/span> \/\/ [0, 2, 4, 6, 8]<\/span>\r\n<\/code><\/pre>\n
\u53ef\u5909\u53c2\u7167\u306e\u5206\u914d<\/h2>\n
\u53ef\u5909\u53c2\u7167\u306b\u304a\u3044\u3066\u3082\u53c2\u7167\u306e\u5206\u914d\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u610f\u56f3\u3057\u305f\u52d5\u4f5c\u3092\u884c\u3044\u307e\u305b\u3093\u3002
\n\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306fnums\u5185\u306e\u8981\u7d20\u306f\u5909\u5316\u3057\u3066\u3044\u307e\u305b\u3093\u3002
\n\u3053\u308c\u306f\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570\u306b\u8981\u7d20\u306e\u30b3\u30d4\u30fc\u304c\u6e21\u3055\u308c\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n
let<\/span> mut<\/span> nums<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nnums<\/span>.iter_mut<\/span>()<\/span>.for_each<\/span>(|<\/span>&<\/span>mut<\/span> mut<\/span> x<\/span>|<\/span> x<\/span> *=<\/span> 2<\/span>);<\/span>\r\nprintln!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> nums<\/span>);<\/span> \/\/ [0, 1, 2, 3, 4]<\/span>\r\n<\/code><\/pre>\n
into_iter<\/h2>\n
iter\u3068iter_mut\u306f\u6240\u6709\u6a29\u306e\u79fb\u52d5\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u304c\u3001into_iter\u306f\u6240\u6709\u6a29\u304c\u79fb\u52d5\u3057\u307e\u3059\u3002
\ninto_iter\u306e\u8fd4\u308a\u5024\u306f\u53c2\u7167\u3067\u306f\u306a\u304f\u5024\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nfor<\/span> x<\/span> in<\/span> nums<\/span>.into_iter<\/span>()<\/span> {<\/span> \/\/ \u5909\u6570x\u306e\u578b\u306fi32<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>);<\/span>\r\n}<\/span>\r\nprintln!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> nums<\/span>);<\/span>  \/\/ \u6240\u6709\u6a29\u304c\u79fb\u52d5\u3057\u305f\u306e\u3067nums\u306f\u4f7f\u3048\u306a\u3044<\/span>\r\n<\/code><\/pre>\n
\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570\u306e\u578b\u306f\u5024\u304b\u53c2\u7167\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
let<\/span> nums<\/span> =<\/span> vec!<\/span>[<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>];<\/span>\r\nlet<\/span> nums2<\/span>:<\/span> Vec<\/span><<\/span>i32<\/span>><\/span> =<\/span> nums<\/span>\r\n    .into_iter<\/span>()<\/span>\r\n    .map<\/span>(|<\/span>x<\/span>:<\/span> i32<\/span>|<\/span> x<\/span> +<\/span> 10<\/span>)<\/span>         \/\/ \u5f15\u6570\u306e\u578b\u306f\u5024<\/span>\r\n    .filter<\/span>(|<\/span>x<\/span>:<\/span> &<\/span>i32<\/span>|<\/span> x<\/span> %<\/span> 2<\/span> ==<\/span> 1<\/span>)<\/span> \/\/ \u5f15\u6570\u306e\u578b\u306f\u53c2\u7167<\/span>\r\n    .collect<\/span>();<\/span>\r\nprintln!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> nums2<\/span>);<\/span> \/\/ [11, 13]<\/span>\r\n<\/code><\/pre>\n
\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5f15\u6570\u306bmut\u3092\u4ed8\u3051\u308b\u3068\u5404\u8981\u7d20\u3092\u53ef\u5909\u306a\u5909\u6570\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
let<\/span> strings<\/span>:<\/span> Vec<\/span><<\/span>String<\/span>><\/span> =<\/span> vec!<\/span>[<\/span>\"A\"<\/span>.to_string<\/span>(),<\/span> \"B\"<\/span>.to_string<\/span>(),<\/span> \"C\"<\/span>.to_string<\/span>()];<\/span>\r\nstrings<\/span>.into_iter<\/span>()<\/span>.for_each<\/span>(|<\/span>mut<\/span> s<\/span>|<\/span> {<\/span>\r\n    s<\/span> +=<\/span> \"_Suffix\"<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> s<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u307e\u3068\u3081<\/h2>\n
\u30a4\u30c6\u30ec\u30fc\u30bf<\/h3>\n
\n
\u95a2\u6570\u540d\u53ef\u5909\u304b\u4e0d\u5909\u304b\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u8fd4\u308a\u5024\u6240\u6709\u6a29iter<\/code>\u4e0d\u5909&T<\/code>(\u53c2\u7167)\u79fb\u52d5\u3057\u306a\u3044iter_mut<\/code>\u53ef\u5909&mut T<\/code>(\u53ef\u5909\u53c2\u7167)\u79fb\u52d5\u3057\u306a\u3044into_iter<\/code>\u4e0d\u5909(mut<\/code>\u3067\u53ef\u5909)T<\/code>(\u5024)\u79fb\u52d5\u3059\u308b<\/div>\n<\/div>\n
\u53c2\u7167\u306e\u5206\u914d<\/h3>\n
\u5909\u6570\u306e\u5148\u982d\u306b&\u3092\u4ed8\u3051\u308b\u3068\u3001\u53c2\u7167\u5916\u3057\u3092\u3057\u3066\u304b\u3089\u5909\u6570\u306b\u4ee3\u5165\u3055\u308c\u308b\u3002
\n\u53c2\u7167\u5916\u3057\u3067\u578b\u304c\u5024\u306b\u306a\u308b\u3068\u53c2\u7167\u5148\u5909\u6570\u306e\u30b3\u30d4\u30fc\u304c\u4ee3\u5165\u3055\u308c\u308b\u3002<\/p>\n
let<\/span> x<\/span>:<\/span> i32<\/span> =<\/span> 5<\/span>;<\/span>\r\nlet<\/span> y<\/span> =<\/span> &<\/span>x<\/span>;<\/span>  \/\/ \u5909\u6570y\u306e\u578b\u306f&i32 \u5909\u6570x\u3078\u306e\u53c2\u7167<\/span>\r\nlet<\/span> &<\/span>z<\/span> =<\/span> &<\/span>x<\/span>;<\/span> \/\/ \u53c2\u7167\u306e\u5206\u914d\u306b\u3088\u308a\u5909\u6570z\u306e\u578b\u306fi32 \u5909\u6570x\u306e\u30b3\u30d4\u30fc\u304c\u4ee3\u5165\u3055\u308c\u308b<\/span>\r\n<\/code><\/pre>\n
\u53c2\u8003\u6587\u732e<\/h2>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u306f\u3058\u3081\u306b Rust\u306b\u306f\u30a4\u30c6\u30ec\u30fc\u30bf\u3068\u3044\u3046\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u578b\u306b\u5bfe\u3059\u308b\u4fbf\u5229\u306a\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u3059\u3002 \u3067\u3059\u304c\u5b9f\u969b\u306b\u4f7f\u3063\u3066\u307f\u308b\u3068 […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45452","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\/45452-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b Rust\u306b\u306f\u30a4\u30c6\u30ec\u30fc\u30bf\u3068\u3044\u3046\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u578b\u306b\u5bfe\u3059\u308b\u4fbf\u5229\u306a\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u3059\u3002 \u3067\u3059\u304c\u5b9f\u969b\u306b\u4f7f\u3063\u3066\u307f\u308b\u3068 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45452-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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