{"id":45726,"date":"2023-05-30T06:18:59","date_gmt":"2023-08-15T09:04:32","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45726-2\/"},"modified":"2024-04-30T06:34:05","modified_gmt":"2024-04-29T22:34:05","slug":"45726-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45726-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u4eca\u5e74\u306e\u8a00\u8a9e\u306fRust \u305d\u306e\uff13\uff12<\/h1>\n<p>Rust\u3092\u5b66\u3073\u307e\u3059<\/p>\n<p>Rust\u306e\u65e5\u672c\u8a9e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8 2nd Edition<br \/>\nhttps:\/\/doc.rust-jp.rs\/book\/second-edition\/<\/p>\n<p>\u30aa\u30ea\u30b8\u30ca\u30eb(\u82f1\u8a9e)<br \/>\nhttps:\/\/doc.rust-lang.org\/book\/<\/p>\n<h2>\u5b9f\u884c\u74b0\u5883<\/h2>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>cargo <span class=\"nt\">-V<\/span>\r\ncargo 1.33.0 <span class=\"o\">(<\/span>f099fe94b 2019-02-12<span class=\"o\">)<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>rustup <span class=\"nt\">-V<\/span>\r\nrustup 1.17.0 <span class=\"o\">(<\/span>069c88ed6 2019-03-05<span class=\"o\">)<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>rustc <span class=\"nt\">--version<\/span>\r\nrustc 1.33.0 <span class=\"o\">(<\/span>2aa4c46cf 2019-02-28<span class=\"o\">)<\/span>\r\n\r\n<span class=\"nv\">$ <\/span> <span class=\"nb\">cat<\/span> \/proc\/version\r\nLinux version 4.14.97-74.72.amzn1.x86_64 <span class=\"o\">(<\/span>mockbuild@gobi-build-64002<span class=\"o\">)<\/span> \r\n<span class=\"o\">(<\/span>gcc version 7.2.1 20170915 <span class=\"o\">(<\/span>Red Hat 7.2.1-2<span class=\"o\">)<\/span> <span class=\"o\">(<\/span>GCC<span class=\"o\">))<\/span> \r\n<span class=\"c\">#1 SMP Tue Feb 5 20:59:30 UTC 2019<\/span>\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">uname<\/span> <span class=\"nt\">-a<\/span>\r\nLinux ip-10-100-0-8 4.14.97-74.72.amzn1.x86_64 \r\n<span class=\"c\">#1 SMP Tue Feb 5 20:59:30 UTC 2019 x86_64 x86_64 x86_64 GNU\/Linux<\/span>\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">cat<\/span> \/etc\/<span class=\"se\">\\*<\/span>release\r\n<span class=\"nv\">NAME<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"Amazon Linux AMI\"<\/span>\r\n<span class=\"nv\">VERSION<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"2018.03\"<\/span>\r\n<span class=\"nv\">ID<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"amzn\"<\/span>\r\n<span class=\"nv\">ID_LIKE<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"rhel fedora\"<\/span>\r\n<span class=\"nv\">VERSION_ID<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"2018.03\"<\/span>\r\n<span class=\"nv\">PRETTY_NAME<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"Amazon Linux AMI 2018.03\"<\/span>\r\n<span class=\"nv\">ANSI_COLOR<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"0;33\"<\/span>\r\n<span class=\"nv\">CPE_NAME<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"cpe:\/o:amazon:linux:2018.03:ga\"<\/span>\r\n<span class=\"nv\">HOME_URL<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"http:\/\/aws.amazon.com\/amazon-linux-ami\/\"<\/span>\r\nAmazon Linux AMI release 2018.03\r\n\r\n<\/code><\/pre>\n<h2>12 \u5165\u51fa\u529b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h2>\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u69cb\u7bc9\u3059\u308b<\/p>\n<h3>12.5 \u74b0\u5883\u5909\u6570\u3092\u53d6\u308a\u6271\u3046<\/h3>\n<pre class=\"post-pre\"><code>\r\n\r\n<span class=\"nd\">#[cfg(test)]<\/span>\r\n<span class=\"k\">mod<\/span> <span class=\"n\">test<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"k\">use<\/span> <span class=\"nn\">super<\/span><span class=\"p\">::<\/span><span class=\"o\">*<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"nd\">#[test]<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">one_result<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">query<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"duct\"<\/span><span class=\"p\">;<\/span>\r\n\r\n        <span class=\"k\">let<\/span> <span class=\"n\">contents<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"<\/span><span class=\"err\">\\<\/span><span class=\"s\">\r\nRust:\r\nsafe, fast, productive.\r\nPick three.\"<\/span><span class=\"p\">;<\/span>\r\n\r\n        <span class=\"nd\">assert_eq!<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"safe, fast, productive.\"<\/span><span class=\"p\">],<\/span>\r\n            <span class=\"nf\">search<\/span><span class=\"p\">(<\/span><span class=\"n\">query<\/span><span class=\"p\">,<\/span> <span class=\"n\">contents<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">#[test]<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">case_sensitive<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">query<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"duct\"<\/span><span class=\"p\">;<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">contents<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"<\/span><span class=\"err\">\\<\/span><span class=\"s\">\r\nRust:\r\nsafe, fast, productive.\r\nPick three.\r\nDuct tape.\"<\/span><span class=\"p\">;<\/span>\r\n\r\n        <span class=\"nd\">assert_eq!<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"safe, fast, productive.\"<\/span><span class=\"p\">],<\/span>\r\n            <span class=\"nf\">search<\/span><span class=\"p\">(<\/span><span class=\"n\">query<\/span><span class=\"p\">,<\/span> <span class=\"n\">contents<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">#[test]<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">case_insensitive<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">query<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"rUsT\"<\/span><span class=\"p\">;<\/span>\r\n\r\n        <span class=\"k\">let<\/span> <span class=\"n\">contents<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"<\/span><span class=\"err\">\\<\/span><span class=\"s\">\r\nRust:\r\nsafe, fast, productive.\r\nPick three.\r\nTrust me.\"<\/span><span class=\"p\">;<\/span>\r\n\r\n        <span class=\"nd\">assert_eq!<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"Rust:\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"Trust me.\"<\/span><span class=\"p\">],<\/span>\r\n            <span class=\"nf\">search_case_insensitive<\/span><span class=\"p\">(<\/span><span class=\"n\">query<\/span><span class=\"p\">,<\/span> <span class=\"n\">contents<\/span><span class=\"p\">)<\/span>\r\n            <span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5927\u6587\u5b57\u3082\u5c0f\u6587\u5b57\u3082\u6c17\u306b\u305b\u305a\u691c\u7d22\u3067\u304d\u308b\u95a2\u6570\u3092\u7acb\u3066\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"n\">search_case_insensitive<\/span><span class=\"o\">&lt;<\/span><span class=\"nv\">'a<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"n\">query<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"nb\">str<\/span><span class=\"p\">,<\/span> <span class=\"n\">contents<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"nv\">'a<\/span> <span class=\"nb\">str<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;&amp;<\/span><span class=\"nv\">'a<\/span> <span class=\"nb\">str<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">query<\/span> <span class=\"o\">=<\/span> <span class=\"n\">query<\/span><span class=\"nf\">.to_lowercase<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">results<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Vec<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">();<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">line<\/span> <span class=\"n\">in<\/span> <span class=\"n\">contents<\/span><span class=\"nf\">.lines<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">line<\/span><span class=\"nf\">.to_lowercase<\/span><span class=\"p\">()<\/span><span class=\"nf\">.contains<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">query<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">results<\/span><span class=\"nf\">.push<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"n\">results<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">pub<\/span> <span class=\"k\">struct<\/span> <span class=\"n\">Config<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">query<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">filename<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">case_sensitive<\/span><span class=\"p\">:<\/span> <span class=\"nb\">bool<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">run<\/span><span class=\"p\">(<\/span><span class=\"n\">config<\/span><span class=\"p\">:<\/span> <span class=\"n\">Config<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">(),<\/span> <span class=\"nb\">Box<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Error<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">f<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">File<\/span><span class=\"p\">::<\/span><span class=\"nf\">open<\/span><span class=\"p\">(<\/span><span class=\"n\">config<\/span><span class=\"py\">.filename<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">contents<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"n\">f<\/span><span class=\"nf\">.read_to_string<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">contents<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"n\">results<\/span> <span class=\"o\">=<\/span> <span class=\"k\">if<\/span> <span class=\"n\">config<\/span><span class=\"py\">.case_sensitive<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nf\">search<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">config<\/span><span class=\"py\">.query<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">contents<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nf\">search_case_insensitive<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">config<\/span><span class=\"py\">.query<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">contents<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">};<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">line<\/span> <span class=\"n\">in<\/span> <span class=\"n\">results<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">line<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(())<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3055\u3066\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u74b0\u5883\u5909\u6570\u306e\u53d7\u3051\u53d6\u308a\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>env::var \u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u6ce8\u610f \u74b0\u5883\u5909\u6570\u306e\u5024 \u3067\u306f\u306a\u304f\u3066\u3001 \u5b58\u5728\u306e\u6709\u7121 \u3092\u8aad\u307f\u53d6\u3063\u3066\u3044\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">impl<\/span> <span class=\"n\">Config<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">args<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"p\">[<\/span><span class=\"nb\">String<\/span><span class=\"p\">])<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Config<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"nv\">'static<\/span> <span class=\"nb\">str<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n        <span class=\"k\">if<\/span> <span class=\"n\">args<\/span><span class=\"nf\">.len<\/span><span class=\"p\">()<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not enough arguments\"<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"k\">let<\/span> <span class=\"n\">query<\/span> <span class=\"o\">=<\/span> <span class=\"n\">args<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">filename<\/span> <span class=\"o\">=<\/span> <span class=\"n\">args<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">();<\/span>\r\n\r\n        <span class=\"c\">\/\/ \u30b3\u30b3\uff01\uff01<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">case_sensitive<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">env<\/span><span class=\"p\">::<\/span><span class=\"nf\">var<\/span><span class=\"p\">(<\/span><span class=\"s\">\"CASE_INSENSITIVE\"<\/span><span class=\"p\">)<\/span><span class=\"nf\">.is_err<\/span><span class=\"p\">();<\/span>\r\n\r\n        <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">Config<\/span> <span class=\"p\">{<\/span> <span class=\"n\">query<\/span><span class=\"p\">,<\/span> <span class=\"n\">filename<\/span><span class=\"p\">,<\/span> <span class=\"n\">case_sensitive<\/span> <span class=\"p\">})<\/span>\r\n\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"err\">$<\/span> <span class=\"n\">CASE_INSENSITIVE<\/span><span class=\"o\">=<\/span><span class=\"n\">hoge<\/span> <span class=\"n\">cargo<\/span> <span class=\"n\">run<\/span> <span class=\"n\">TO<\/span> <span class=\"n\">poem<\/span><span class=\"py\">.txt<\/span>\r\n\r\n<span class=\"n\">Are<\/span> <span class=\"n\">you<\/span> <span class=\"n\">nobody<\/span><span class=\"p\">,<\/span> <span class=\"n\">too<\/span><span class=\"o\">?<\/span>\r\n<span class=\"n\">How<\/span> <span class=\"n\">dreary<\/span> <span class=\"n\">to<\/span> <span class=\"n\">be<\/span> <span class=\"nd\">somebody!<\/span>\r\n<span class=\"n\">To<\/span> <span class=\"n\">tell<\/span> <span class=\"n\">your<\/span> <span class=\"n\">name<\/span> <span class=\"n\">the<\/span> <span class=\"n\">livelong<\/span> <span class=\"n\">day<\/span>\r\n<span class=\"n\">To<\/span> <span class=\"n\">an<\/span> <span class=\"n\">admiring<\/span> <span class=\"nd\">bog!<\/span>\r\n<span class=\"n\">nohara<\/span><span class=\"p\">:<\/span><span class=\"o\">~\/<\/span><span class=\"n\">environment<\/span><span class=\"o\">\/<\/span><span class=\"nf\">minigrep<\/span> <span class=\"p\">(<\/span><span class=\"n\">master<\/span><span class=\"p\">)<\/span> \r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"err\">$<\/span> <span class=\"n\">CASE_INSENSITIVE<\/span><span class=\"o\">=<\/span><span class=\"mi\">1<\/span> <span class=\"n\">cargo<\/span> <span class=\"n\">run<\/span> <span class=\"n\">TO<\/span> <span class=\"n\">poem<\/span><span class=\"py\">.txt<\/span>             \r\n\r\n<span class=\"n\">Are<\/span> <span class=\"n\">you<\/span> <span class=\"n\">nobody<\/span><span class=\"p\">,<\/span> <span class=\"n\">too<\/span><span class=\"o\">?<\/span>\r\n<span class=\"n\">How<\/span> <span class=\"n\">dreary<\/span> <span class=\"n\">to<\/span> <span class=\"n\">be<\/span> <span class=\"nd\">somebody!<\/span>\r\n<span class=\"n\">To<\/span> <span class=\"n\">tell<\/span> <span class=\"n\">your<\/span> <span class=\"n\">name<\/span> <span class=\"n\">the<\/span> <span class=\"n\">livelong<\/span> <span class=\"n\">day<\/span>\r\n<span class=\"n\">To<\/span> <span class=\"n\">an<\/span> <span class=\"n\">admiring<\/span> <span class=\"nd\">bog!<\/span>\r\n<span class=\"n\">nohara<\/span><span class=\"p\">:<\/span><span class=\"o\">~\/<\/span><span class=\"n\">environment<\/span><span class=\"o\">\/<\/span><span class=\"nf\">minigrep<\/span> <span class=\"p\">(<\/span><span class=\"n\">master<\/span><span class=\"p\">)<\/span> \r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"err\">$<\/span> <span class=\"n\">cargo<\/span> <span class=\"n\">run<\/span> <span class=\"n\">TO<\/span> <span class=\"n\">poem<\/span><span class=\"py\">.txt<\/span>\r\n\r\n\r\n<span class=\"c\">\/\/ \u691c\u7d22\u7d50\u679c\u306a\u3057<\/span>\r\n\r\n<\/code><\/pre>\n<blockquote><p>std::env\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u74b0\u5883\u5909\u6570\u3092\u6271\u3046\u3082\u3063\u3068\u591a\u304f\u306e\u6709\u7528\u306a\u6a5f\u80fd\u3092\u6709\u3057\u3066\u3044\u307e\u3059: \u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u3001\u4f55\u304c\u5229\u7528\u53ef\u80fd\u304b\u78ba\u304b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p><\/blockquote>\n<p>\u30a4\u30a8\u30b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5e74\u306e\u8a00\u8a9e\u306fRust \u305d\u306e\uff13\uff12 Rust\u3092\u5b66\u3073\u307e\u3059 Rust\u306e\u65e5\u672c\u8a9e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8 2nd Edition ht [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45726","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- 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\/45726-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u4eca\u5e74\u306e\u8a00\u8a9e\u306fRust \u305d\u306e\uff13\uff12 Rust\u3092\u5b66\u3073\u307e\u3059 Rust\u306e\u65e5\u672c\u8a9e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8 2nd Edition ht [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45726-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-15T09:04:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T22:34:05+00:00\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" 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