{"id":1440,"date":"2025-06-22T17:55:24","date_gmt":"2025-06-22T17:55:24","guid":{"rendered":"https:\/\/robinluo.top\/?p=1440"},"modified":"2025-06-23T16:47:28","modified_gmt":"2025-06-23T16:47:28","slug":"rust-%e6%96%87%e4%bb%b6%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/robinluo.top\/?p=1440","title":{"rendered":"Rust \u6587\u4ef6\u7cfb\u7edf"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>use std::fs::OpenOptions;\r\nuse std::io::prelude::*;\r\nuse std::path::Path;\r\n\r\nfn main() -> std::io::Result&lt;()> {\r\n    let file_path = Path::new(\"hello.txt\");\r\n    \r\n    let mut file = OpenOptions::new()\r\n        .create(true)\r\n        .append(true)\r\n        .open(file_path)?;\r\n        \r\n    file.write_all(b\"Hello, World!\\n\")?;\r\n    \r\n    println!(\"\u6210\u529f\u8ffd\u52a0\u5185\u5bb9\u5230\u6587\u4ef6: {}\", file_path.display());\r\n    Ok(())\r\n}<\/code><\/pre>\n\n\n\n<p>\u521b\u5efa\u6587\u4ef6\u5e76\u4e14\u5199\u5165<\/p>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\r\nfn read() -> Result&lt;(), Box&lt;dyn Error>> {\r\n    let file_path = Path::new(\"hello.txt\");\r\n    \r\n    match File::open(file_path) {\r\n        Ok(mut file) => {\r\n            let mut contents = String::new();\r\n            file.read_to_string(&amp;mut contents)?;\r\n            println!(\"\u6587\u4ef6\u5185\u5bb9:\\n{}\", contents);\r\n        }\r\n        Err(e) => eprintln!(\"\u65e0\u6cd5\u6253\u5f00\u6587\u4ef6: {}\", e),\r\n    }\r\n    \r\n    Ok(())\r\n}<\/code><\/pre>\n\n\n\n<p>\u8bfb\u53d6\u6587\u4ef6<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u521b\u5efa\u6587\u4ef6\u5e76\u4e14\u5199\u5165 \u8bfb\u53d6\u6587\u4ef6<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[225],"tags":[],"_links":{"self":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/1440"}],"collection":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1440"}],"version-history":[{"count":4,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/1440\/revisions"}],"predecessor-version":[{"id":1449,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/1440\/revisions\/1449"}],"wp:attachment":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}