{"id":111652,"date":"2026-10-01T13:49:17","date_gmt":"2026-10-01T05:49:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/111652.html"},"modified":"2026-10-01T13:49:17","modified_gmt":"2026-10-01T05:49:17","slug":"rust-%e9%ab%98%e7%ba%a7%e7%89%b9%e6%80%a7%e7%a7%80%e5%9c%ba%ef%bc%9aspawn-%e9%97%ad%e5%8c%85%e7%9a%84%e7%b1%bb%e5%9e%8b%e7%ba%a6%e6%9d%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/111652.html","title":{"rendered":"Rust \u9ad8\u7ea7\u7279\u6027\u79c0\u573a\uff1aspawn \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f"},"content":{"rendered":"

\"\"<\/p>\n

\u6211\u4eec\u5df2\u7ecf\u5728\u672c\u535a\u5ba2\u7684\u6570\u7bc7\u6587\u7ae0\u4e2d\u63a5\u8fde\u8ba8\u8bba\u4e86 Rust \u7684\u95ed\u5305\u3001Fn \/ FnMut \/ FnOnce \u7279\u8d28\u3001\u591a\u7ebf\u7a0b\u3001Send \u7279\u8d28\u548c 'static \u7ea6\u675f\u7b49\u9ad8\u7ea7\u7279\u6027，\u5728\u5177\u5907\u4e86\u8fd9\u4e9b\u77e5\u8bc6\u50a8\u5907\u540e，\u6211\u4eec\u7ec8\u4e8e\u53ef\u4ee5\u6765\u62c6\u89e3 spawn \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f\u4e86，\u8fd9\u662f\u4e00\u4e2a\u96c6\u4ee5\u4e0a\u4f17\u591a\u9ad8\u7ea7\u7279\u6027\u4e8e\u4e00\u8eab，\u751f\u52a8\u8be0\u91ca Rust \u8bed\u8a00\u8868\u73b0\u529b\u7684\u7ecf\u5178\u573a\u666f\u3002\u53cb\u60c5\u63d0\u793a：\u672c\u6587\u7275\u6d89\u77e5\u8bc6\u70b9\u4f17\u591a，\u4f46\u6bcf\u4e00\u4e2a\u5173\u952e\u77e5\u8bc6\u70b9\u6211\u4eec\u90fd\u5df2\u4e13\u95e8\u4ecb\u7ecd\u8fc7，\u5728\u5b83\u4eec\u51fa\u73b0\u7684\u5730\u65b9\u4f1a\u7ed9\u51fa\u5bf9\u5e94\u94fe\u63a5\u3002\u672c\u6587\u539f\u6587\u94fe\u63a5：https:\/\/laurence.blog.csdn.net\/article\/details\/166011287 \u7981\u6b62\u8f6c\u8f7d\u3002\u597d\u6587\u63a8\u8350\u300aRust GPUI \u684c\u9762\u5e94\u7528\u5f00\u53d1\u5165\u95e8：Assets \u8d44\u6e90\u6587\u4ef6\u7684\u52a0\u8f7d\u4e0e\u4f7f\u7528\u300b<\/p>\n

1. \u65b9\u6cd5\u7b7e\u540d<\/h2>\n

\u6211\u4eec\u77e5\u9053，thread::spawn() \u7528\u4e8e\u5b75\u5316\u4e00\u4e2a\u5355\u72ec\u7684\u7ebf\u7a0b，\u7528\u6237\u5c06\u6253\u7b97\u5728\u7ebf\u7a0b\u4e2d\u6267\u884c\u7684\u4ee3\u7801\u5199\u6210\u4e00\u4e2a\u95ed\u5305\u5e76\u4f20\u7ed9\u8fd9\u4e2a\u51fd\u6570，\u5c31\u5b8c\u6210\u4e86\u4e00\u4e2a\u591a\u7ebf\u7a0b\u4efb\u52a1，\u5f97\u76ca\u4e8e Rust \u8bf8\u591a\u9ad8\u7ea7\u7279\u6027\u7684\u652f\u6301，\u8fd9\u79cd\u7ebf\u7a0b\u7684\u5b9a\u4e49\u548c\u6267\u884c\u65b9\u5f0f\u7b80\u6d01\u800c\u4f18\u96c5，\u66f4\u91cd\u8981\u7684\u662f，\u5b83\u8fd8\u63d0\u4f9b\u4e86\u8bf8\u591a\u7684\u7ebf\u7a0b\u5b89\u5168\u4fdd\u62a4\u673a\u5236，\u9664\u4e86\u59cb\u7ec8\u5728\u53d1\u6325\u4f5c\u7528\u7684\u6240\u6709\u6743\u548c\u501f\u7528\u68c0\u67e5\u4e4b\u5916（\u8fd9\u91cc\u4e0d\u662f\u5355\u5355\u6307\u5b83\u4eec\u5728\u5185\u5b58\u5b89\u5168\u4e2d\u7684\u5e38\u89c4\u4f5c\u7528，\u66f4\u591a\u7684\u662f\u6307\u5b83\u4eec\u5728\u7ebf\u7a0b\u5b89\u5168\u4e0a\u53d1\u6325\u7684\u4f5c\u7528，\u5177\u4f53\u53ef\u53c2\u8003\u300a\u65e0\u4e3a\u800c\u6cbb，Rust \u591a\u7ebf\u7a0b\u7684\u5904\u4e16\u54f2\u5b66\u300b\u7684\u7b2c 2 \u8282），\u8fd8\u6709\u4e00\u90e8\u4fdd\u62a4\u673a\u5236\u5c31\u6765\u81ea\u4e8e\u6211\u4eec\u4eca\u5929\u8981\u4ecb\u7ecd\u7684\u95ed\u5305\u7c7b\u578b\u7ea6\u675f\u4e0a\u3002\u8ba9\u6211\u4eec\u6b63\u5f0f\u5207\u5165\u4e3b\u9898，\u770b\u4e00\u4e0b thread::spawn() \u65b9\u6cd5\u7684\u7b7e\u540d：<\/p>\n

pub<\/span> fn<\/span> spawn<\/span><<\/span>F<\/span>,<\/span> T<\/span>><\/span>(<\/span>f:<\/span> F<\/span>)<\/span> -><\/span> JoinHandle<\/span><<\/span>T<\/span>><\/span>
\nwhere<\/span>
\n F<\/span>:<\/span> FnOnce<\/span>(<\/span>)<\/span> -><\/span> T<\/span> +<\/span> Send<\/span> +<\/span> 'static<\/span>,<\/span>
\n T<\/span>:<\/span> Send<\/span> +<\/span> 'static<\/span><\/p>\n

\u6211\u4eec\u91cd\u70b9\u5173\u6ce8\u7684\u662f\u5bf9\u95ed\u5305\u7c7b\u578b F \u7684\u7ea6\u675f F: FnOnce() -> T + Send + 'static，\u8fd9\u4e00\u884c\u5bb9\u6613\u88ab\u8bef\u8bfb，Send + 'static \u4e0d\u662f\u8fd4\u56de\u503c，\u800c\u662f\u5bf9 F \u7684\u7c7b\u578b\u7ea6\u675f\u7684\u4e00\u90e8\u5206，\u6b63\u786e\u7684\u5206\u7ec4\u662f：<\/p>\n

F<\/span>:<\/span> FnOnce<\/span>(<\/span>)<\/span> -><\/span> T<\/span> +<\/span> Send<\/span> +<\/span> 'static<\/span>
\n\/\/ ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^<\/span>
\n\/\/ F \u7684\u7b2c\u4e00\u4e2a bound F \u7684\u53e6\u5916\u4e24\u4e2a bound<\/span><\/p>\n

\u8fd9\u4e00\u884c\u540c\u65f6\u58f0\u660e\u4e86\u4e09\u4ef6\u4e8b：<\/p>\n

\u2022 F \u662f\u4e00\u4e2a\u65e0\u53c2\u6570\u3001\u8fd4\u56de\u7c7b\u578b\u4e3a T \u7684\u4e00\u6b21\u6027\u95ed\u5305，\u5373 FnOnce() -> T \u90e8\u5206 \u2022 F \u5fc5\u987b\u662f\u4e00\u4e2a Send，\u5373：F \u8de8\u7ebf\u7a0b move \u662f\u7ebf\u7a0b\u5b89\u5168\u7684 \u2022 F \u5fc5\u987b\u662f\u4e00\u4e2a 'static \u7c7b\u578b，\u5373：F \u4e0d\u5f97\u542b\u6709\u4efb\u4f55\u5916\u90e8\u5f15\u7528（'static \u5f15\u7528\u9664\u5916）\u4e0b\u56fe\u662f\u5bf9\u4ee5\u4e0a\u4e09\u90e8\u5206\u58f0\u660e\u7684\u8be6\u7ec6\u89e3\u91ca，\u6211\u4eec\u5c06\u5728\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u9010\u4e00\u89e3\u91ca\u8fd9\u4e09\u4e2a\u7ea6\u675f\u3002<\/p>\n

\"\"<\/p>\n

2. \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f：FnOnce() -> T<\/h2>\n

\u6211\u4eec\u5148\u6765\u770b F \u7684\u7b2c\u4e00\u4e2a\u7c7b\u578b\u7ea6\u675f：FnOnce() -> T，\u5b83\u660e\u786e\u5730\u544a\u8bc9\u4e86\u6211\u4eec spawn \u51fd\u6570\u9700\u8981\u4e00\u4e2a\u4ec0\u4e48\u6837\u7684\u51fd\u6570\u3002\u8fd9\u91cc\u5148\u6d88\u9664\u4e00\u4e2a\u8bef\u89e3，spawn \u5e76\u6ca1\u8bf4\u53ea\u80fd\u63a5\u53d7\u95ed\u5305，FnOnce() -> T \u662f\u5bf9\u51fd\u6570\u7c7b\u578b\u7684\u63cf\u8ff0，\u5b9e\u9645\u4e0a，\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u5c06\u4e00\u4e2a\u51fd\u6570\u4f20\u7ed9 spawn，\u5c31\u50cf\u8fd9\u6837：<\/p>\n

use<\/span> std::<\/span><\/span>thread;<\/span><\/p>\n

fn<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
\n fn<\/span> f<\/span>(<\/span>)<\/span> {<\/span> println!<\/span>(<\/span>"Hello, world!"<\/span>)<\/span>;<\/span> }<\/span>
\n let<\/span> handle =<\/span> thread::<\/span><\/span>spawn<\/span>(<\/span>f)<\/span>;<\/span>
\n handle.<\/span>join<\/span>(<\/span>)<\/span>.<\/span>unwrap<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u53ea\u662f\u56e0\u4e3a FnOnce() -> T \u9650\u5236\u4e86\u51fd\u6570\u4e0d\u53ef\u4ee5\u6709\u53c2\u6570，\u8fd9\u5c31\u76f4\u63a5\u56de\u7edd\u4e86\u7edd\u5927\u591a\u6570\u51fd\u6570\u4ee5\u51fd\u6570\u6307\u9488\u6216\u51fd\u6570\u9879\u7684\u5f62\u5f0f\u4f20\u5165 spawn \u7684\u53ef\u80fd，\u800c\u95ed\u5305\u5219\u4e0d\u53d7\u6b64\u9650\u5236，\u56e0\u4e3a\u95ed\u5305\u53ef\u4ee5\u901a\u8fc7\u81ea\u7531\u53d8\u91cf\u5f15\u5165\u5916\u90e8\u503c，\u4e0d\u5fc5\u975e\u5f97\u4f7f\u7528\u53c2\u6570，\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u4eba\u4eec\u51e0\u4e4e\u603b\u662f\u7ed9 spawn \u4f20\u5165\u4e00\u4e2a\u95ed\u5305\u7684\u539f\u56e0\u3002<\/p>\n

\u5f88\u591a\u4eba\u5728\u521d\u6b21\u770b\u5230 F: FnOnce() -> T \u65f6\u4f1a\u8bef\u8ba4\u4e3a spawn \u53ea\u63a5\u53d7\u4e00\u6b21\u6027\u95ed\u5305，\u5e76\u8ba4\u5b9a\u8fd9\u662f\u6700\u4e25\u683c\u7684\u95ed\u5305\u7ea6\u675f\u3002\u6b8a\u4e0d\u77e5，\u662f\u5b8c\u5168\u641e\u53cd\u4e86！\u5b9e\u9645\u4e0a，\u8fd9\u662f\u6700\u5bbd\u677e\u7684\u7ea6\u675f，\u53ea\u8981\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u5339\u914d，\u4f60\u53ef\u4ee5\u5c06\u4efb\u4f55\u51fd\u6570\u548c\u95ed\u5305\u4f20\u7ed9 spawn，\u4e0d\u7ba1\u8fd9\u4e2a\u95ed\u5305\u662f\u5426\u6355\u83b7\u81ea\u7531\u53d8\u91cf\u4ee5\u53ca\u6355\u83b7\u7684\u662f\u4e0d\u53ef\u53d8\u5f15\u7528\u3001\u53ef\u53d8\u5f15\u7528\u8fd8\u662f\u503c，\u90fd\u53ef\u4ee5\u4f20\u7ed9 spawn（\u5f53\u7136，\u8fd8\u6709\u5176\u4ed6\u7684\u7ea6\u675f\u4f1a\u8d77\u4f5c\u7528，\u6bd4\u5982 'static，\u4f46\u8fd9\u662f\u53e6\u4e00\u4e2a\u8bdd\u9898）\u3002\u5982\u679c\u4f60\u5bf9\u6b64\u611f\u5230\u8be7\u5f02\u6216\u65e0\u6cd5\u7406\u89e3，\u90a3\u8bf4\u660e\u4f60\u5bf9 Fn\u3001FnMut\u3001FnOnce \u4e09\u4e2a trait \u7684\u7406\u89e3\u8fd8\u4e0d\u591f\u900f\u5f7b，\u63a8\u8350\u4f60\u9605\u8bfb\u300a\u4f60\u7406\u89e3\u7684 Fn\u3001FnMut\u3001FnOnce \u53ef\u80fd\u4ece\u4e00\u5f00\u59cb\u5c31\u9519\u4e86\u2026\u300b\u3002<\/p>\n

3. \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f：Send<\/h2>\n

Send \u7ea6\u675f\u4e0e\u7ebf\u7a0b\u606f\u606f\u76f8\u5173，\u6700\u8868\u5c42\u7684\u89e3\u91ca\u662f：\u5982\u679c\u4e00\u4e2a\u7c7b\u578b\u8981 move \u8fdb\u7ebf\u7a0b\u4e2d，\u5b83\u5fc5\u987b\u662f Send \u7684\u3002\u56e0\u4e3a\u53ea\u6709\u88ab\u6807\u8bb0\u4e3a Send \u7684\u7c7b\u578b\u624d\u53ef\u4ee5\u5b89\u5168\u5730\u5728\u7ebf\u7a0b\u95f4 move\u3002\u8fd9\u91cc\u6709\u4e24\u4e2a\u66f4\u6df1\u5165\u7684\u95ee\u9898\u9700\u8981\u89e3\u91ca：\u4e00\u4e2a\u662f\u5230\u5e95\u4ec0\u4e48\u6837\u7684\u7c7b\u578b\u53ef\u4ee5\u88ab\u6807\u8bb0\u4e3a Send？\u53e6\u4e00\u4e2a\u662f\u4e3a\u4ec0\u4e48\u8981\u6c42\u95ed\u5305\u5f97\u662f Send \u7684？\u6211\u4eec\u5148\u56de\u7b54\u7b2c\u4e8c\u4e2a\u95ee\u9898，\u8981\u6c42\u95ed\u5305\u5fc5\u987b\u662f Send \u7684\u539f\u56e0\u662f：\u95ed\u5305\u53ef\u80fd\u4f1a\u6355\u83b7\u5916\u90e8\u503c，\u7f16\u8bd1\u5668\u4f1a\u628a\u8fd9\u4e2a\u503c\u5c01\u88c5\u8fdb\u95ed\u5305\u5bf9\u5e94\u7684\u533f\u540d\u7ed3\u6784\u4f53\u4e2d，\u5bf9\u95ed\u5305\u65bd\u52a0 Send \u7ea6\u675f\u7684\u76ee\u7684\u5176\u5b9e\u662f\u901a\u8fc7\u81ea\u52a8\u4f20\u5bfc\u673a\u5236\u628a Send \u7ea6\u675f\u4f20\u64ad\u5230\u95ed\u5305\u6355\u83b7\u7684\u5916\u90e8\u503c\u4e0a，\u56e0\u4e3a\u6b64\u65f6，\u95ed\u5305\u662f\u7ed3\u6784\u4f53，\u5b83\u6355\u83b7\u7684\u503c\u662f\u7ed3\u6784\u4f53\u7684\u4e00\u4e2a\u5b57\u6bb5，\u5bf9\u7ed3\u6784\u4f53\u7684 Send \u7ea6\u675f\u4f1a\u81ea\u52a8\u4f5c\u7528\u5230\u5b57\u6bb5\u4e0a，\u4e5f\u5c31\u662f\u8bf4：\u5982\u679c\u4e00\u4e2a\u95ed\u5305\u6355\u83b7\u4e86\u4e00\u4e2a\u4e0d\u662f Send \u7684\u503c（\u6bd4\u5982\u4e00\u4e2a Rc \u5b9e\u4f8b），\u90a3 spawn \u4f1a\u62d2\u7edd\u8fd9\u4e2a\u95ed\u5305，\u62a5\u7c7b\u578b\u4e0d\u5339\u914d\u9519\u8bef！<\/p>\n

\u81f3\u4e8e\u5230\u5e95\u4ec0\u4e48\u6837\u7684\u7c7b\u578b\u53ef\u4ee5\u88ab\u6807\u8bb0\u4e3a Send？\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u590d\u6742\u7684\u8bdd\u9898，\u6211\u4eec\u5df2\u7ecf\u5728\u300a\u4e07\u7269\u7686\u53ef\u591a\u7ebf\u7a0b？\u6df1\u5165\u89e3\u8bfb Rust \u7684 Send \u548c Sync\u300b\u4e00\u6587\u4e2d\u628a\u8fd9\u4e2a\u95ee\u9898\u89e3\u91ca\u5f97\u975e\u5e38\u900f\u5f7b\u4e86\u3002\u89e3\u91ca\u8fd9\u4e2a\u95ee\u9898\u901a\u5e38\u4f1a\u7528 Rc \u7c7b\u578b\u4f5c\u4e3a\u793a\u4f8b\u6765\u89e3\u91ca，\u56e0\u4e3a Rc \u662f\u4e00\u4e2a\u975e\u5e38\u5178\u578b\u7684\u975e Send \u7c7b\u578b，\u4f46\u662f，\u8981\u5b8c\u5168\u7406\u89e3 Rc \u4e3a\u4ec0\u4e48\u662f\u975e Send \u7c7b\u578b\u53c8\u8981\u5bf9\u5171\u4eab\u6240\u6709\u6743\u6709\u6e05\u6670\u7684\u8ba4\u8bc6，\u4e8e\u662f，\u6211\u4eec\u53c8\u4e13\u95e8\u64b0\u5199\u4e86\u300aRust \u6240\u6709\u6743\u8fdb\u9636\u5fc5\u8bfb：\u4e3a\u4ec0\u4e48 Rc \u5171\u4eab\u6240\u6709\u6743\u662f\u4e2a\u4f2a\u6982\u5ff5？\u300b\u6765\u8fdb\u884c\u89e3\u91ca\u3002<\/p>\n

4. \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f：'static<\/h2>\n

\u51c6\u786e\u5730\u8bf4，'static \u662f\u751f\u547d\u5468\u671f\u7ea6\u675f，\u4f46\u662f\u751f\u547d\u5468\u671f\u7ea6\u675f\u4e5f\u662f\u6cdb\u578b\u7c7b\u578b\u7ea6\u675f\u7684\u4e00\u79cd\u3002\u6211\u4eec\u66fe\u5728\u300a\u56f0\u60d1\u662f\u6b63\u5e38\u7684,'static \u751f\u547d\u5468\u671f\u7ea6\u675f\u672c\u6765\u5c31\u4e0d\u7b80\u5355\u300b\u4e00\u6587\u4e2d\u7cfb\u7edf\u5730\u4ecb\u7ecd\u8fc7\u5b83，\u800c spawn \u95ed\u5305\u7684\u8fd9\u4e2a 'static \u7ea6\u675f\u662f\u4e00\u4e2a\u975e\u5e38\u201c\u5999\u201d\u7684\u6848\u4f8b，\u6211\u4eec\u66fe\u5728\u300a\u65e0\u4e3a\u800c\u6cbb，Rust \u591a\u7ebf\u7a0b\u7684\u5904\u4e16\u54f2\u5b66\u300b\u4e00\u6587\u4e2d\u4e13\u95e8\u70b9\u8bc4\u8fc7\u8fd9\u4e2a 'static \u7ea6\u675f： \u7531\u4e8e\u95ed\u5305\u4e2d\u7684\u4ee3\u7801\u4f1a\u5728\u4e00\u4e2a\u65b0\u7ebf\u7a0b\u4e2d\u6267\u884c，\u5982\u679c\u95ed\u5305\u6355\u83b7\u4e86\u4e00\u4e2a\u5916\u90e8\u503c\u7684\u5f15\u7528，\u90a3\u95ed\u5305\u4e2d\u7684\u5f15\u7528\u548c\u5916\u90e8\u503c\u8c01\u5148\u5931\u6548\u5c31\u53d8\u6210\u4e86\u4e00\u4ef6\u4e0d\u786e\u5b9a\u7684\u4e8b\u60c5\u3002\u5982\u679c\u662f\u5355\u7ebf\u7a0b\u73af\u5883，\u9760\u6240\u6709\u6743\u548c\u501f\u7528\u68c0\u67e5\u5206\u6790\u9759\u6001\u4ee3\u7801（\u5b83\u4eec\u6700\u540e\u4e00\u6b21\u4f7f\u7528\u7684\u5730\u65b9）\u662f\u53ef\u4ee5\u786e\u5b9a\u7684，\u4f46\u662f\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d，\u5982\u679c\u503c\u548c\u5f15\u7528\u5206\u5c5e\u4e8e\u4e24\u4e2a\u7ebf\u7a0b\u4e2d，\u90a3\u8c01\u5148\u5931\u6548\u786e\u5b9e\u662f\u65e0\u6cd5\u9884\u5224\u7684，\u4e00\u65e6\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u4e2d\u7684\u503c\u5148\u4e8e\u5f53\u524d\u7ebf\u7a0b\u4e2d\u7684\u5f15\u7528\u5931\u6548，\u90a3\u5f53\u524d\u7ebf\u7a0b\u4e2d\u7684\u5f15\u7528\u5c31\u662f\u201c\u60ac\u5782\u5f15\u7528\u201d\u4e86\u3002\u600e\u4e48\u624d\u80fd\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\u5462？spawn \u7684\u505a\u6cd5\u5c31\u662f：\u7ed9\u95ed\u5305\u6dfb\u52a0\u4e0a 'static \u7ea6\u675f，\u7981\u6b62\u95ed\u5305\u4f9d\u8d56\u5916\u90e8\u5f15\u7528（'static \u5f15\u7528\u9664\u5916）\u3002\u8fd9\u91cc\u987a\u5e26\u89e3\u91ca\u4e00\u4e2a\u5076\u5c14\u4f1a\u6709\u4eba\u4f7f\u7528\u7684\u6982\u5ff5：\u77ed\u671f\u501f\u7528\u3001\u77ed\u751f\u547d\u5468\u671f\u5f15\u7528，\u5176\u5b9e\u5b83\u4eec\u7684\u610f\u601d\u5c31\u662f：\u9664 'static \u5f15\u7528\u4e4b\u5916\u7684\u6240\u6709\u5f15\u7528，\u56e0\u4e3a\u6bcf\u6b21\u90fd\u8bf4：\u7981\u6b62\u4f9d\u8d56\u5f15\u7528（'static \u5f15\u7528\u9664\u5916）\u4f1a\u6bd4\u8f83\u9ebb\u70e6，\u6240\u4ee5\u6709\u4eba\u628a\u6392\u9664\u6389 'static \u5f15\u7528\u540e\u7684\u5f15\u7528\u7c7b\u578b\u53eb：\u77ed\u671f\u501f\u7528\u6216\u77ed\u751f\u547d\u5468\u671f\u5f15\u7528，\u8fd9\u4e2a\u201c\u77ed\u201d\u4e5f\u4e0d\u662f\u771f\u7684\u6709\u591a\u77ed，\u53ea\u662f\u76f8\u5bf9\u4e8e 'static \u800c\u8a00\u7684\u3002 \u6211\u4eec\u524d\u9762\u63d0\u5230\u8fc7：\u95ed\u5305\u4f1a\u88ab\u7f16\u8bd1\u6210\u533f\u540d\u7ed3\u6784\u4f53，\u5b83\u6355\u83b7\u7684\u5916\u90e8\u503c\u548c\u5f15\u7528\u90fd\u5728\u8fd9\u4e2a\u7ed3\u6784\u4f53\u4e2d，\u5982\u679c\u6355\u83b7\u4e86\u5f15\u7528，\u7ed3\u6784\u4f53\u5fc5\u987b\u8981\u6dfb\u52a0\u751f\u547d\u5468\u671f\u7ea6\u675f，\u4fdd\u8bc1\u7ed3\u6784\u4f53\u548c\u5b83\u6355\u83b7\u7684\u5f15\u7528\u7684\u751f\u547d\u5468\u671f\u4e00\u81f4，\u4e0b\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u5206\u522b\u5c55\u793a\u4e86\u6355\u83b7\u4e0d\u53ef\u53d8\u548c\u53ef\u53d8\u5f15\u7528\u95ed\u5305\u65f6\u751f\u6210\u7684\u533f\u540d\u7ed3\u6784\u4f53\u7684\u6837\u5b50：<\/p>\n

\u2022 \u6355\u83b7\u4e0d\u53ef\u53d8\u5f15\u7528\u7684\u95ed\u5305<\/p>\n

\/* \u95ed\u5305 *\/<\/span><\/p>\n

let<\/span> x =<\/span> String<\/span>::<\/span>from<\/span>(<\/span>"hello"<\/span>)<\/span>;<\/span>
\nlet<\/span> c =<\/span> |<\/span>|<\/span><\/span> println!<\/span>(<\/span>"{}"<\/span>,<\/span> x)<\/span>;<\/span><\/p>\n

\/* \u7f16\u8bd1\u5668\u751f\u6210\u7684\u533f\u540d\u7ed3\u6784\u4f53（\u4f2a\u4ee3\u7801）*\/<\/span><\/p>\n

struct<\/span> Closure<\/span><<\/span>'a<\/span>><\/span> {<\/span>
\n x:<\/span> &<\/span>'a<\/span> String<\/span>,<\/span> \/\/ \u5b57\u6bb5\u662f\u5f15\u7528，\u5e26\u751f\u547d\u5468\u671f'a<\/span>
\n}<\/span><\/p>\n

\u2022 \u6355\u83b7\u53ef\u53d8\u5f15\u7528\u7684\u95ed\u5305<\/p>\n

\/* \u95ed\u5305 *\/<\/span><\/p>\n

let<\/span> mut<\/span> x =<\/span> 0<\/span>;<\/span>
\nlet<\/span> mut<\/span> c =<\/span> |<\/span>|<\/span><\/span> x +=<\/span> 1<\/span>;<\/span><\/p>\n

\/* \u7f16\u8bd1\u5668\u751f\u6210\u7684\u533f\u540d\u7ed3\u6784\u4f53（\u4f2a\u4ee3\u7801）*\/<\/span><\/p>\n

struct<\/span> Closure<\/span><<\/span>'a<\/span>><\/span> {<\/span>
\n x:<\/span> &<\/span>'a<\/span> mut<\/span> i32<\/span>,<\/span> \/\/ \u5b57\u6bb5\u662f\u53ef\u53d8\u5f15\u7528<\/span>
\n}<\/span><\/p>\n

\u4e0d\u7ba1\u662f\u6355\u83b7\u4e0d\u53ef\u53d8\u5f15\u7528\u7684\u95ed\u5305\u8fd8\u662f\u53ef\u53d8\u5f15\u7528\u7684\u95ed\u5305，\u56e0\u4e3a\u5b83\u4eec\u6355\u83b7\u4e86\u5f15\u7528，\u6240\u4ee5\u7ed3\u6784\u4f53\u5fc5\u987b\u6dfb\u52a0\u751f\u547d\u5468\u671f\u6807\u6ce8\u4ee5\u786e\u4fdd\u5b83\u548c\u88ab\u6355\u83b7\u5f15\u7528\u7684\u751f\u547d\u5468\u671f\u4e00\u81f4！\u4f46\u662f，\u73b0\u5728，\u7531\u4e8e\u591a\u7ebf\u7a0b\u5bfc\u81f4\u7684\u4e0d\u786e\u5b9a\u6027，spawn \u7ed9\u95ed\u5305\u6dfb\u52a0\u4e0a\u4e86 'static \u7ea6\u675f，\u5b9e\u9645\u4e0a\u4e5f\u5c31\u662f\u7ed9\u8fd9\u4e2a\u7ed3\u6784\u4f53\u6dfb\u52a0\u4e0a\u4e86 'static \u7ea6\u675f，\u8fd9\u4e2a\u7ea6\u675f\u4f1a\u81ea\u52a8\u4f20\u5bfc\u7ed9\u95ed\u5305\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u6bb5，\u90a3\u5c31\u610f\u5473\u7740：\u7ed3\u6784\u4f53\u4e0d\u5f97\u542b\u6709\u5f15\u7528\u7c7b\u578b('static \u5f15\u7528\u9664\u5916），\u8003\u8651\u5230\u5e76\u4e0d\u662f\u4ec0\u4e48\u503c\u90fd\u80fd\u501f\u51fa 'static \u5f15\u7528，\u6240\u4ee5，\u5b9e\u9645\u4e0a，\u8fd9\u4e00\u201c\u62db\u201d\u76f4\u63a5\u628a\u95ed\u5305\u6355\u83b7\u5916\u90e8\u5f15\u7528\u7684\u8def\u7ed9\u201c\u5835\u6b7b\u201d\u4e86！\u4f46\u662f，\u95ed\u5305\u603b\u662f\u9700\u8981\u4ece\u73af\u5883\u4e2d\u83b7\u5f97\u7c7b\u4f3c\u53c2\u6570\u6027\u8d28\u7684\u6570\u636e，\u5982\u679c\u4e0d\u5141\u8bb8\u6355\u83b7\u5f15\u7528，\u90a3\u552f\u4e00\u53ef\u884c\u7684\u505a\u6cd5\u5c31\u662f：\u628a\u6240\u6709\u4f9d\u8d56\u7684\u5f15\u7528\u7684\u503c\u5168\u90e8 move \u8fdb\u95ed\u5305！<\/p>\n

\u4e3a\u4ec0\u4e48\u628a\u4f9d\u8d56\u5230\u7684\u5f15\u7528\u7684\u503c move \u8fdb\u95ed\u5305\u540e，\u5c31\u4e0d\u8fdd\u53cd 'static \u7ea6\u675f\u4e86\u5462？\u56e0\u4e3a\u79fb\u52a8\u8fdb\u95ed\u5305\u91cc\u4e4b\u540e，\u95ed\u5305\u6355\u83b7\u7684\u5c31\u662f\u503c\u4e86，\u4e0d\u518d\u4f9d\u8d56\u4efb\u4f55\u5f15\u7528，\u6ca1\u6709\u4e86\u5f15\u7528，'static \u7ea6\u675f\u5c31\u7b49\u4e8e\u88ab\u201c\u67b6\u7a7a\u201d\u4e86\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u8fd9\u79cd\u5173\u7cfb：<\/p>\n

\/* \u95ed\u5305 *\/<\/span><\/p>\n

let<\/span> x =<\/span> String<\/span>::<\/span>from<\/span>(<\/span>"hello"<\/span>)<\/span>;<\/span>
\nlet<\/span> c =<\/span> move<\/span> |<\/span>|<\/span><\/span> println!<\/span>(<\/span>"{}"<\/span>,<\/span> x)<\/span>;<\/span><\/p>\n

\/* \u7f16\u8bd1\u5668\u751f\u6210\u7684\u533f\u540d\u7ed3\u6784\u4f53（\u4f2a\u4ee3\u7801）*\/<\/span><\/p>\n

struct<\/span> Closure<\/span> {<\/span>
\n x:<\/span> String<\/span>,<\/span> \/\/ \u5b57\u6bb5\u662f\u5b8c\u6574\u7684\u503c！\u4e0d\u662f\u5f15\u7528\u3002\u6240\u6709\u6743 move \u8fdb\u7ed3\u6784\u4f53<\/span>
\n}<\/span><\/p>\n

\u81f3\u6b64，spawn \u95ed\u5305\u7684\u7c7b\u578b\u7ea6\u675f： F: FnOnce() -> T + Send + 'static \u5c31\u5168\u90e8\u4ecb\u7ecd\u5b8c\u4e86，\u6700\u540e，\u6211\u4eec\u518d\u6765\u603b\u7ed3\u4e00\u4e0b spawn \u5230\u5e95\u9700\u8981\u4ec0\u4e48\u6837\u7684\u95ed\u5305：<\/p>\n

\u2460 FnOnce \u578b\u95ed\u5305（\u6ce8\u610f：Fn \u7ee7\u627f\u81ea FnOnce，\u65e0\u4efb\u4f55\u5916\u90e8\u4f9d\u8d56\u7684 Fn \u95ed\u5305\u6216\u51fd\u6570\u4e5f\u6ee1\u8db3\u6761\u4ef6）；<\/p>\n

\u2461 \u4e0d\u5f97\u4f9d\u8d56\u4efb\u4f55\u975e 'static \u5f15\u7528；<\/p>\n

\u2462 \u82e5\u786e\u5b9e\u9700\u8981\u5916\u90e8\u4f9d\u8d56，\u53ef\u4f7f\u7528 move \u5173\u952e\u5b57\u5c06\u4f9d\u8d56\u7684\u503c\u76f4\u63a5\u79fb\u52a8\u5230\u95ed\u5305\u5185，\u4e14\u503c\u5fc5\u987b\u662f Send \u7684<\/p>\n","protected":false},"excerpt":{"rendered":"

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