{"id":431350,"date":"2024-01-08T09:01:52","date_gmt":"2024-01-08T08:01:52","guid":{"rendered":"https:\/\/blog.jetbrains.com\/?post_type=rust&#038;p=431350"},"modified":"2024-01-08T09:01:57","modified_gmt":"2024-01-08T08:01:57","slug":"the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-1","status":"publish","type":"rust","link":"https:\/\/blog.jetbrains.com\/zh-hans\/rust\/2024\/01\/08\/the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-1\/","title":{"rendered":"RustRover \u4e2d\u6700\u5e38\u89c1\u7684 Rust \u7f16\u8bd1\u5668\u9519\u8bef\uff1a\u7b2c 1 \u90e8\u5206"},"content":{"rendered":"<p>Rust \u7f16\u8bd1\u5668\u76f8\u5f53\u6311\u5254\uff0c \u5982\u679c\u5b83\u5bf9\u8f93\u5165\u7684\u6e90\u4ee3\u7801\u4e0d\u6ee1\u610f\uff0c\u53ef\u80fd\u4f1a\u53d1\u51fa 400 \u591a\u79cd\u4e0d\u540c\u7684\u9519\u8bef\uff08\u800c\u4e14\u6bcf\u4e2a\u6708\u90fd\u5728\u589e\u52a0\uff01\uff09\u3002 \u6709\u4e9b\u9519\u8bef\u6781\u5176\u7f55\u89c1\uff0c\u53e6\u4e00\u4e9b\u5219\u6bcf\u5929\u90fd\u56f0\u7ed5\u7740 Rust \u5f00\u53d1\u8005\u3002 \u5728\u8fd9\u4e2a\u535a\u6587\u7cfb\u5217\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5f00\u53d1\u8005\u5728 RustRover\uff08JetBrains \u63a8\u51fa\u7684\u4e13\u5c5e Rust IDE\uff09\u4e2d\u9047\u5230\u7684\u6700\u5e38\u89c1 Rust \u7f16\u8bd1\u5668\u9519\u8bef\u6d88\u606f\uff0c\u5e76\u8bf4\u660e\u5982\u4f55\u907f\u514d\u8fd9\u4e9b\u9519\u8bef\u3002 \u9996\u5148\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u201c\u6700\u5e38\u89c1\u9519\u8bef\u201d\u5b9e\u9645\u4e0a\u6307\u7684\u662f\u4ec0\u4e48\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4ece RustRover \u7684\u4f7f\u7528\u6570\u636e\u4e2d\u8bc6\u522b\u6700\u5e38\u89c1\u7684\u9519\u8bef<\/h2>\n<p>\u4efb\u4f55 RustRover \u7528\u6237\u90fd\u53ef\u4ee5\u9009\u62e9\u5411 JetBrains <a href=\"https:\/\/www.jetbrains.com.cn\/help\/idea\/settings-usage-statistics.html\" target=\"_blank\" rel=\"noopener\">\u53d1\u9001\u5176\u533f\u540d\u4f7f\u7528\u6570\u636e<\/a>\u3002 \u901a\u8fc7\u5206\u6790\u8fd9\u4e9b\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5404\u79cd\u7528\u6237\u6a21\u5f0f\u5e76\u6df1\u5165\u63a2\u7a76\u5982\u4f55\u6539\u8fdb IDE\u3002 \u5f53\u7136\uff0c\u6211\u4eec\u975e\u5e38\u91cd\u89c6\u60a8\u7684\u9690\u79c1\uff0c\u56e0\u6b64 IDE \u6536\u96c6\u7684\u4fe1\u606f\u975e\u5e38\u6709\u9650\u3002 \u4f8b\u5982\uff0c\u6570\u636e\u4e2d\u7684\u4efb\u4f55\u5185\u5bb9\u90fd\u65e0\u6cd5\u8ffd\u6eaf\u5230\u7528\u6237\u3002 \u4f46\u533f\u540d\u6570\u636e\u4ecd\u7136\u53ef\u4ee5\u544a\u8bc9\u6211\u4eec IDE \u7684\u4e00\u822c\u4f7f\u7528\u60c5\u51b5\uff0c\u4f8b\u5982\u6700\u5e38\u751f\u6210\u7684\u9519\u8bef\u6d88\u606f\u7c7b\u578b\u3002<\/p>\n<p>\u5f53\u9009\u62e9\u52a0\u5165\u7684\u7528\u6237\u901a\u8fc7 IDE \u542f\u52a8 Cargo Build \u547d\u4ee4\uff08\u4f8b\u5982\uff0c\u901a\u8fc7\u89e6\u53d1\u9700\u8981\u6784\u5efa\u9879\u76ee\u7684\u8fd0\u884c\u914d\u7f6e\uff09\u5e76\u4e14 Rust \u7f16\u8bd1\u5668\u53d1\u51fa\u9519\u8bef\u65f6\uff0c\u6211\u4eec\u5c31\u4f1a\u8bb0\u5f55<a href=\"https:\/\/doc.rust-lang.org\/error_codes\/error-index.html\" target=\"_blank\" rel=\"noopener\">\u9519\u8bef\u4ee3\u7801<\/a>\u3002 \u8fd9\u4e0d\u5305\u62ec\u7528\u6237\u7f16\u5199\u4ee3\u7801\u65f6\u51fa\u73b0\u7684<em>\u6240\u6709<\/em>\u4ee3\u7801\u95ee\u9898\uff0c\u4ec5\u5305\u62ec\u5728\u7528\u6237\u6784\u5efa\u9879\u76ee\u540e\u4ecd\u7136\u5b58\u5728\u7684\u95ee\u9898\u3002 \u4e2d\u95f4\u9519\u8bef\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7 IDE \u7684\u68c0\u67e5\u548c\u5feb\u901f\u4fee\u590d\u5904\u7406\u3002 \u7528\u6237\u5411\u6211\u4eec\u53d1\u9001\u7684\u4f7f\u7528\u6570\u636e\u8d8a\u591a\u3001\u4f7f\u7528 RustRover \u7684\u9891\u7387\u8d8a\u9ad8\uff0c\u6211\u4eec\u5c31\u8d8a\u80fd\u4e86\u89e3\u4ed6\u4eec\u7684\u4f53\u9a8c\uff0c\u4e5f\u5c31\u8d8a\u80fd\u6539\u8fdb IDE \u7684\u4ee3\u7801\u8f85\u52a9\u529f\u80fd\u3002 \u56e0\u6b64\uff0c\u611f\u8c22\u6240\u6709\u52a0\u5165\u7684\u7528\u6237\u901a\u8fc7\u5176\u4f7f\u7528\u6570\u636e\u5e2e\u52a9\u6211\u4eec\u6539\u8fdb RustRover\uff01<\/p>\n<p>\u6211\u4eec\u4ece\u8fd0\u884c RustRover \u7684\u7528\u6237\u5904\u6536\u96c6\u9519\u8bef\u4ee3\u7801\uff0c\u5e76\u6839\u636e\u9047\u5230\u9519\u8bef\u7684\u7528\u6237\u6570\u91cf\u5bf9\u5176\u6392\u540d\u3002 \u672c\u7cfb\u5217\u7684\u8fd9\u4e00\u90e8\u5206\u5c06\u8ba8\u8bba\u7b2c 10 \u5230 6 \u540d\u6700\u5e38\u89c1\u9519\u8bef\uff0c\u4e0b\u4e00\u90e8\u5206\u5c06\u63ed\u793a\u524d 5 \u540d\u6700\u5e38\u89c1\u9519\u8bef\u3002 \u6211\u4eec\u5c06\u7814\u7a76\u8fd9\u4e9b\u9519\u8bef\u80cc\u540e\u7684\u539f\u56e0\uff0c\u63a2\u7d22\u7b80\u5355\u793a\u4f8b\uff0c\u5e76\u63a2\u8ba8\u6f5c\u5728\u4fee\u6b63\u65b9\u5f0f\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef #10\uff1aE0412<em>\uff08\u4f7f\u7528\u7684\u7c7b\u578b\u540d\u79f0\u4e0d\u5728\u4f5c\u7528\u57df\u5185\uff09<\/em><\/h2>\n<p>Rust \u5728\u7c7b\u578b\u58f0\u660e\u70b9\u548c\u7c7b\u578b\u540d\u79f0\u7528\u6cd5\u4e4b\u95f4\u4fdd\u6301\u4e25\u683c\u533a\u5206\u3002 \u6bcf\u4e2a\u7c7b\u578b\u540d\u79f0\uff08\u5305\u62ec\u6cdb\u578b\u7c7b\u578b\uff09\u90fd\u5fc5\u987b\u5728\u67d0\u5904\u58f0\u660e\uff0c\u5e76\u4e14\u5728\u5176\u4f7f\u7528\u4f5c\u7528\u57df\u5185\u53ef\u7528\u3002 \u5982\u679c\u7f16\u8bd1\u5668\u9047\u5230\u7c7b\u578b\u540d\u79f0\u7528\u6cd5\u4f46\u6ca1\u6709\u5173\u4e8e\u5176\u58f0\u660e\u70b9\u7684\u4efb\u4f55\u4fe1\u606f\uff0c\u5219\u4f1a\u53d1\u51fa E0412\u3002 \u5927\u7ea6 12% \u7684 RustRover \u7528\u6237\u9047\u5230\u8fc7\u6b64\u9519\u8bef\u3002<\/p>\n<p>\u5047\u8bbe\u60a8\u8f93\u5165\u4e86 <code>i42<\/code> \u800c\u4e0d\u662f <code>i32<\/code>\uff0c RustRover \u4f1a\u53d1\u73b0\u95ee\u9898\u5e76\u9ad8\u4eae\u663e\u793a\u672a\u77e5\u7c7b\u578b\u540d\u79f0\u3002 \u7f16\u8bd1\u5668\u63d0\u4f9b\u4e86\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\u5e76\u5efa\u8bae\u4fee\u6b63\uff0c\u70b9\u51fb\u7f16\u8bd1\u5668\u8f93\u51fa\u4e2d\u7684 <em>Apply fix<\/em>\uff08\u5e94\u7528\u4fee\u6b63\uff09\u6309\u94ae\u5373\u53ef\u8f7b\u677e\u5e94\u7528\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418741\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-16.png\" alt=\"\" width=\"1600\" height=\"900\" \/><\/figure>\n<p>\u5176\u4ed6\u5bfc\u81f4 E0412 \u7684\u60c5\u51b5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5fd8\u8bb0\u58f0\u660e\u7c7b\u578b\u3002<\/li>\n<li>\u5c06\u7c7b\u578b\u5bfc\u5165\u5230\u5f53\u524d\u4f5c\u7528\u57df\u3002<\/li>\n<li>\u5f15\u5165\u6cdb\u578b\u7c7b\u578b\u540d\u79f0\u800c\u4f7f\u7f16\u8bd1\u5668\u65e0\u6cd5\u8bbf\u95ee\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<p>\u8981\u4fee\u6b63\u8fd9\u4e00\u95ee\u9898\uff0c\u53ef\u4ee5\u63d0\u4f9b\u7c7b\u578b\u58f0\u660e\uff08\u58f0\u660e\u7ed3\u6784\u6216\u6b63\u786e\u5f15\u5165\u6cdb\u578b\u7c7b\u578b\u540d\u79f0\uff09\u6216\u5c06\u7c7b\u578b\u5f15\u5165\u4f5c\u7528\u57df\uff08\u901a\u8fc7 <code>use<\/code> \u5b50\u53e5\uff09\u3002 <a href=\"https:\/\/doc.rust-lang.org\/error_codes\/E0412.html\" target=\"_blank\" rel=\"noopener\">\u5b98\u65b9 E0412 \u9519\u8bef\u8bf4\u660e<\/a>\u7ed9\u51fa\u4e86\u6b64\u9519\u8bef\u7684\u66f4\u591a\u793a\u4f8b\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef #9\uff1aE0061\uff08<em>\u8c03\u7528\u51fd\u6570\u65f6\u4f20\u9012\u7684\u5b9e\u53c2\u6570\u91cf\u65e0\u6548<\/em>\uff09<\/h2>\n<p>\u867d\u7136 RustRover \u53ef\u4ee5\u611f\u77e5\u5230\u8fd9\u4e2a\u9519\u8bef\u5e76\u63d0\u4f9b\u4e00\u7cfb\u5217\u4fee\u6b63\uff0c\u4f46 13% \u7684 RustRover \u7528\u6237\u4f1a\u5728\u6784\u5efa\u9879\u76ee\u4e4b\u524d\u5ffd\u7565\u8fd9\u4e2a\u9519\u8bef\u3002<\/p>\n<p>\u9519\u8bef\u672c\u8eab\u4e0d\u9700\u8981\u8fc7\u591a\u89e3\u91ca\uff1a\u6211\u4eec\u6709\u4e00\u4e2a\u51fd\u6570\uff0c\u8981\u4e48\u5728\u5f53\u524d\u4f5c\u7528\u57df\u4e2d\u58f0\u660e\uff0c\u8981\u4e48\u4ece\u5176\u4ed6\u5730\u65b9\u5bfc\u5165\uff0c\u800c\u8c03\u7528\u70b9\u7ed9\u51fa\u7684\u5b9e\u53c2\u592a\u5c11\u6216\u592a\u591a\u3002 \u6211\u4eec\u6765\u770b\u4e00\u4e2a\u793a\u4f8b\uff0c\u5e76\u6bd4\u8f83 RustRover \u7684\u5efa\u8bae\u548c Rust \u7f16\u8bd1\u5668\u7684\u5efa\u8bae\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418752\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-17.png\" alt=\"\" width=\"1600\" height=\"900\" \/><\/figure>\n<p>\u8fd9\u4e2a\u793a\u4f8b\u5c55\u793a\u4e86\u4e00\u4e2a<a href=\"https:\/\/adventofcode.com\/\" target=\"_blank\" rel=\"noopener\">\u5e38\u89c1\u573a\u666f<\/a>\uff1a\u6253\u5f00\u6587\u4ef6\u3002 \u5982\u679c\u6211\u4eec\u4e60\u60ef\u4e86\u4f7f\u7528\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u7f16\u7801\uff0c\u5c31\u53ef\u80fd\u63d0\u4f9b\u7b2c\u4e8c\u4e2a\u5b9e\u53c2\uff0c\u5fd8\u8bb0\u5728 Rust \u4e2d\u8fd9\u4e2a\u65b9\u6cd5\u53ea\u9700\u8981\u4e00\u4e2a\u5b9e\u53c2\u3002 RustRover \u548c Rust \u7f16\u8bd1\u5668\u90fd\u5efa\u8bae\u79fb\u9664\u7b2c\u4e8c\u4e2a\u5b9e\u53c2\u3002 \u5f88\u597d\uff0c\u6211\u4eec\u4e0d\u9700\u8981\u6784\u5efa\u9879\u76ee\u5c31\u53ef\u4ee5\u4ece IDE \u83b7\u5f97\u5b9e\u7528\u5efa\u8bae\u3002 \u6ce8\u610f\u4ee3\u7801\u4e2d\u7684\u7ea2\u8272\u6ce2\u6d6a\u7ebf\uff0c\u5b83\u4eec\u901a\u5e38\u90fd\u6709\u610f\u4e49\uff01<\/p>\n<p>\u5982\u679c\u8c03\u7528\u7684\u51fd\u6570\u662f\u5728\u6211\u4eec\u81ea\u5df1\u7684\u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\uff0c\u60c5\u51b5\u5c31\u66f4\u6709\u8da3\u4e86\u3002 \u5047\u8bbe\u6211\u4eec\u7ee7\u7eed\u6dfb\u52a0\u5230\u76f8\u540c\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418763\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-18.png\" alt=\"\" width=\"1600\" height=\"900\" \/><\/figure>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cRustRover \u5efa\u8bae\u5411\u51fd\u6570\u6dfb\u52a0\u5f62\u53c2\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u66ff\u4ee3\u65b9\u6848\uff0c\u8fd9\u5e94\u8be5\u6ca1\u6709\u95ee\u9898\u3002 \u4f46 Rust \u7f16\u8bd1\u5668\u5219\u575a\u6301\u5c06\u5176\u79fb\u9664\u3002 \u8fd9\u79cd\u5dee\u5f02\u6709\u5176\u539f\u56e0\u3002 \u7f16\u8bd1\u5668\u7684\u5de5\u4f5c\u662f\u786e\u4fdd\u7a0b\u5e8f\u6b63\u786e\uff0c\u4e3a\u6b64\uff0c\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u5c31\u662f\u6d88\u9664\u8c03\u7528\u70b9\u7684\u989d\u5916\u5b9e\u53c2\u3002 \u7136\u800c\uff0cIDE \u7684\u4f5c\u7528\u662f\u8ba9\u60a8\u66f4\u63a5\u8fd1\u60a8\u60f3\u8981\u8fbe\u6210\u7684\u76ee\u6807\u3002 \u5982\u679c\u60a8\u662f\u4e3a\u81ea\u5df1\u7684\u51fd\u6570\u8f93\u5165\u4e86\u8fd9\u4e2a\u5b9e\u53c2\uff0c\u90a3\u4e48\u60a8\u5f88\u6709\u53ef\u80fd\u662f\u6709\u610f\u4e3a\u4e4b\uff0c\u56e0\u6b64 RustRover \u4f1a\u5c1d\u8bd5\u5e2e\u52a9\u60a8\u5b8c\u6210\u5de5\u4f5c\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef #8\uff1aE0282\uff08<em>\u7f16\u8bd1\u5668\u65e0\u6cd5\u63a8\u65ad\u7c7b\u578b\u5e76\u8981\u6c42\u7c7b\u578b\u6ce8\u89e3<\/em>\uff09<\/h2>\n<p>\u6709\u65f6\u7f16\u8bd1\u5668\u4f1a\u4e0d\u77e5\u6240\u63aa\uff0c\u65e0\u6cd5\u786e\u5b9a\u53d8\u91cf\u6240\u9700\u7684\u7c7b\u578b\uff0c\u53ea\u80fd\u5efa\u8bae\u624b\u52a8\u6dfb\u52a0\u7c7b\u578b\u6ce8\u89e3\u3002 \u5982\u679c\u60a8\u9047\u5230\u8fc7\u8fd9\u4e2a\u9519\u8bef\uff0c\u60a8\u5e76\u4e0d\u5b64\u5355\uff0c13.5% \u7684 RustRover \u7528\u6237\u4e5f\u9047\u5230\u8fc7\u3002<\/p>\n<p>E0282 \u8fd9\u6837\u7684\u9519\u8bef\u4e3b\u8981\u6e90\u4e8e\u6cdb\u578b\u6027\u3002 \u8bb8\u591a\u5e93\u51fd\u6570\u90fd\u91c7\u7528\u6cdb\u578b\u7c7b\u578b\u5f62\u53c2\uff0c\u4f46\u7f16\u8bd1\u5668\u5fc5\u987b\u5c06\u8fd9\u4e9b\u5f62\u53c2\u5b9e\u4f8b\u5316\u4e3a\u5177\u4f53\u7c7b\u578b\uff0c\u56e0\u800c\u9677\u5165\u56f0\u60d1\u3002 \u8bf7\u67e5\u770b\u4ee5\u4e0b\u793a\u4f8b\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418774\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-19.png\" alt=\"\" width=\"1600\" height=\"900\" \/><\/figure>\n<p>\u6211\u4eec\u60f3\u8981\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u6536\u96c6\u5230\u5bb9\u5668\u4e2d\u3002 \u7136\u800c\uff0c\u7f16\u8bd1\u5668\u4e0d\u80fd\u786e\u5b9a\u5b83\u4eec\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\u6570\u5b57\u6216\u4ec0\u4e48\u7c7b\u578b\u7684\u5bb9\u5668\u3002<\/p>\n<p>\u7f16\u8bd1\u5668\u5efa\u8bae\u9996\u5148\u6307\u5b9a\u5bb9\u5668\u7c7b\u578b\u3002 \u4f46\u662f\uff0c\u5982\u679c\u5e94\u7528\u6b64\u4fee\u6b63\uff0c\u6211\u4eec\u5c06\u518d\u6b21\u9047\u5230\u76f8\u540c\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u6d89\u53ca <code>str::parse<\/code>\u3002 <code>collect<\/code> \u548c <code>parse<\/code> \u90fd\u662f\u6cdb\u578b\u65b9\u6cd5\uff0c\u4f46\u7f16\u8bd1\u5668\u9700\u8981\u77e5\u9053\u786e\u5207\u7c7b\u578b\u624d\u80fd\u7f16\u8bd1\u4f7f\u7528\u5b83\u4eec\u7684\u4ee3\u7801\u3002 \u8bf7\u6ce8\u610f\uff0cRustRover \u6ca1\u6709\u9ad8\u4eae\u663e\u793a\u9519\u8bef\uff0c\u56e0\u4e3a\u6211\u4eec\u4ecd\u5728\u5b8c\u5584\u5176\u7c7b\u578b\u68c0\u67e5\u529f\u80fd\u3002<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4fee\u6b63\u8fd9\u4e2a\u95ee\u9898\uff0c\u56e0\u4e3a\u4e0d\u6b62\u4e00\u4e2a\u5730\u65b9\u53ef\u4ee5\u6dfb\u52a0\u7c7b\u578b\u6ce8\u89e3\u3002 \u6211\u4eec\u53ef\u4ee5\u6307\u5b9a <code>numbers<\/code> \u5411\u91cf\u7684\u5177\u4f53\u7c7b\u578b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">let numbers: Vec = \"1\u00a0 5 \u00a0 \u00a0 6 \u00a0 3\"<\/pre>\n<p>\u6216\u8005\u6211\u4eec\u53ef\u4ee5\u5728\u8c03\u7528 <code>collect<\/code> \u65f6\u63d0\u53ca\u76f8\u540c\u7684\u7c7b\u578b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   .collect::&lt;Vec&gt;();<\/pre>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u5730\u65b9\u63d0\u53ca\u4e0d\u540c\u7684\u7c7b\u578b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">let numbers = \"1\u00a0 5 \u00a0 \u00a0 6 \u00a0 3\"\n\u00a0\u00a0\u00a0.split_whitespace()\n\u00a0\u00a0\u00a0.map(str::parse::)\n\u00a0\u00a0\u00a0.map(Result::unwrap)\n\u00a0\u00a0\u00a0.collect::&lt;Vec&gt;();<\/pre>\n<p>\u8fd9\u4e2a\u9519\u8bef\u5f88\u5bb9\u6613\u4fee\u6b63\uff0c\u6307\u5b9a\u9700\u8981\u7684\u7c7b\u578b\u5373\u53ef\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef #7\uff1aE0432\uff08<em>import \u672a\u89e3\u6790<\/em>\uff09<\/h2>\n<p>RustRover \u63d0\u4f9b\u4e86\u5927\u91cf\u81ea\u52a8\u8865\u5168\u529f\u80fd\u3002 \u4f8b\u5982\uff0c\u6211\u4eec\u9996\u5148\u5728\u4ee3\u7801\u4e2d\u5f15\u5165\u6b63\u5219\u8868\u8fbe\u5f0f\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418785\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-20.png\" alt=\"\" width=\"1600\" height=\"421\" \/><\/figure>\n<p>\u5982\u679c\u9009\u62e9\u7b2c\u4e00\u4e2a\u5efa\u8bae\uff0c\u9664\u4e86\u8865\u5168\u672c\u8eab\uff0c\u8fd8\u4f1a\u53d1\u751f\u4e24\u4ef6\u4e8b\uff1a<\/p>\n<ul>\n<li>\u5bf9 <code>regex<\/code> crate \u7684\u4f9d\u8d56\u5c06\u6dfb\u52a0\u5230\u60a8\u7684 <kbd>Cargo.toml<\/kbd> \u4e2d\u3002<\/li>\n<li><code>use regex::Regex;<\/code> \u5b50\u53e5\u5c06\u6dfb\u52a0\u5230\u6587\u4ef6\u9876\u90e8\u3002<\/li>\n<\/ul>\n<p>\u6dfb\u52a0\u8fd9\u6837\u7684 use \u5b50\u53e5\u65f6\uff0cimport \u4f1a\u81ea\u52a8\u6b63\u786e\u5199\u5165\u3002 \u4f46\u6709\u65f6\u60a8\u9700\u8981\u624b\u52a8\u7f16\u5199 import\uff0c\u8fd9\u65f6\u5c31\u53ef\u80fd\u51fa\u73b0 E0432 \u9519\u8bef\u300215.5% \u7684 RustRover \u7528\u6237\u4f1a\u4e0d\u65f6\u9047\u5230\u8fd9\u79cd\u60c5\u51b5\uff0c\u6700\u6709\u53ef\u80fd\u662f\u56e0\u4e3a\u4ed6\u4eec\u62fc\u9519\u4e86 crate \u6216\u6a21\u5757\u540d\u79f0\uff0c\u5c1d\u8bd5\u5bfc\u5165\u4e0d\u5b58\u5728\u7684\u5185\u5bb9\uff0c\u6216\u8005\u4ece\u67d0\u5904\u590d\u5236\u7c98\u8d34\u540e\u5c06\u9519\u8bef\u7684 <code>use<\/code> \u5b50\u53e5\u5e26\u5165\u4ee3\u7801\u3002 \u7b2c\u4e00\u4e2a\u5efa\u8bae\u59cb\u7ec8\u662f\u68c0\u67e5\u4f9d\u8d56\u9879\u548c\u540d\u79f0\u3002<\/p>\n<p>\u6709\u65f6 RustRover \u53ef\u4ee5\u5e2e\u52a9\u9632\u6b62\u6b64\u9519\u8bef\u3002 \u5982\u679c\u77e5\u9053\u6211\u4eec\u5c1d\u8bd5\u5bfc\u5165\u7684 crate\uff0c\u5b83\u53ef\u4ee5\u5728\u60a8\u4ece\u5916\u90e8\u6e90\u7c98\u8d34\u4ee3\u7801\u65f6\u5efa\u8bae\u6dfb\u52a0\u4f9d\u8d56\u9879\uff0c\u6216\u8005\u901a\u8fc7\u4ee5\u4e0b\u5feb\u901f\u4fee\u590d\u63d0\u4f9b\u652f\u6301\uff1a<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-418796\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-21.png\" alt=\"\" width=\"1567\" height=\"335\" \/><\/figure>\n<p>\u5c06\u76f8\u5e94\u4f9d\u8d56\u9879\u6dfb\u52a0\u5230 <kbd>Cargo.toml<\/kbd> \u53ef\u4ee5\u7acb\u5373\u4fee\u6b63\u6b64\u9519\u8bef\u3002 \u5728 crate \u53ef\u7528\u540e\uff0c\u5bf9 <code>use<\/code> \u5b50\u53e5\u4e2d\u7684\u5176\u4ed6\u8def\u5f84\u7ec4\u4ef6\u4f7f\u7528\u81ea\u52a8\u8865\u5168\u80fd\u591f\u907f\u514d\u51fa\u73b0\u66f4\u591a\u540d\u79f0\u95ee\u9898\u3002 \u53e6\u8bf7\u6ce8\u610f\uff0c\u67d0\u4e9b\u540d\u79f0\u7684\u53ef\u7528\u6027\u53ef\u80fd\u53d6\u51b3\u4e8e crate \u7684\u542f\u7528\u529f\u80fd\u3002<\/p>\n<p><code>super<\/code> \u6216 <code>crate<\/code> \u8fd9\u6837\u7684\u7279\u6b8a\u8def\u5f84\u540d\u79f0\u4e5f\u53ef\u80fd\u5b58\u5728\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u4e0d\u540c\u7684 Rust \u7248\u672c\u4e2d\u8981\u4ee5\u4e0d\u540c\u7684\u65b9\u5f0f\u5904\u7406\u3002 \u8bf7\u53c2\u9605<a href=\"https:\/\/doc.rust-lang.org\/error_codes\/E0432.html\" target=\"_blank\" rel=\"noopener\">\u5b98\u65b9\u8bf4\u660e<\/a>\u4e86\u89e3\u8be6\u60c5\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef #6\uff1aE0382\uff08<em>\u5185\u5bb9\u79fb\u52a8\u5230\u5176\u4ed6\u4f4d\u7f6e\u540e\u53d8\u91cf\u624d\u88ab\u4f7f\u7528<\/em>\uff09<\/h2>\n<p>\u63a5\u4e0b\u6765\u662f\u6240\u6709\u6743\u95ee\u9898\uff0c 17% \u7684 RustRover \u7528\u6237\u9047\u5230\u8fc7\u8fd9\u4e2a\u9519\u8bef\u3002 <a href=\"https:\/\/doc.rust-lang.org\/error_codes\/E0382.html\" target=\"_blank\" rel=\"noopener\">\u5b98\u65b9\u8bf4\u660e<\/a>\u76f8\u5f53\u8be6\u7ec6\uff0c\u5e76\u63d0\u4f9b\u4e86\u8bb8\u591a\u793a\u4f8b\u3002 \u53ef\u60dc\uff0cRustRover \u5728\u8fd9\u91cc\u6ca1\u6709\u592a\u5927\u5e2e\u52a9\u3002 \u5982\u679c\u7981\u7528<a href=\"https:\/\/www.jetbrains.com.cn\/help\/rust\/rust-external-linters.html\" target=\"_blank\" rel=\"noopener\">\u5916\u90e8 linter<\/a>\uff0cRustRover \u7684\u5185\u90e8\u673a\u5236\u4e0d\u4f1a\u53d1\u73b0\u4ee5\u4e0b\u4ee3\u7801\u6709\u4efb\u4f55\u95ee\u9898\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">fn main() {\n\u00a0\u00a0\u00a0let vec = vec![1, 2, 3, 4, 5];\n\u00a0\u00a0\u00a0let mut sum = 0;\n\u00a0\u00a0\u00a0for v in vec {\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum += v;\n\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0println!(\"Sum of {vec:?} elements is {sum}\");\n}<\/pre>\n<p>\u8fd9\u6bb5\u770b\u4f3c\u65e0\u8f9c\u7684\u4ee3\u7801\u5728\u5176\u4ed6\u51e0\u79cd\u7f16\u7a0b\u8bed\u8a00\u4e2d\u5b8c\u5168\u5408\u6cd5\u3002 \u6211\u4eec\u6709\u4e00\u4e2a\u5411\u91cf\uff0c\u60f3\u8981\u8ba1\u7b97\u5176\u5143\u7d20\u7684\u603b\u548c\u3002 \u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u4f7f\u7528 C \u8bed\u8a00\uff0c\u4e0d\u77e5\u9053\u8fed\u4ee3\u5668\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\u6280\u5de7\uff0c\u6211\u4eec\u9700\u8981\u7f16\u5199\u4f20\u7edf\u7684 <code>for<\/code> \u5faa\u73af\u3002 \u5b8c\u6210\u6240\u6709\u6c42\u548c\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8f93\u51fa\u5411\u91cf\u548c\u8ba1\u7b97\u7ed3\u679c\u3002 \u53f3\u4fa7?<\/p>\n<p>\u5728 Rust \u4e2d\u4e0d\u884c\uff0c\u56e0\u4e3a\u5b83\u6709\u6240\u6709\u6743\u89c4\u5219\u3002\u00a0<\/p>\n<p>\u95ee\u9898\u5728\u4e8e\uff0c<code>for<\/code> \u5faa\u73af\u4e2d\u7684\u6570\u636e\u6e90\u6269\u5c55\u5230\u5177\u6709\u6574\u4e2a\u5411\u91cf\u7684\u6240\u6709\u6743\u7684 <code>into_iter()<\/code> \u8c03\u7528\u3002 \u56e0\u6b64\uff0c\u5c1d\u8bd5\u8bbf\u95ee <code>println!<\/code> \u4e2d\u5411\u91cf\u7684\u5143\u7d20\u65f6\uff0c\u7f16\u8bd1\u5668\u4f1a\u8868\u793a\u5b83\u5df2\u88ab\u79fb\u52a8\u3002<\/p>\n<p>\u4fee\u6b63\u5f88\u7b80\u5355\uff0c\u5e76\u4e14\u7531\u7f16\u8bd1\u5668\u5efa\u8bae\uff1a\u8fed\u4ee3 <code>&amp;vec<\/code>\uff0c\u907f\u514d\u5c06\u5176<em>\u79fb\u5165<\/em>\u5faa\u73af\uff0c\u800c\u5e94\u6539\u4e3a<em>\u501f\u7528<\/em>\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u5efa\u8bae\u59cb\u7ec8\u8ddf\u8e2a\u503c\u6240\u6709\u6743\u3002 \u79fb\u52a8\u503c\u548c\u501f\u7528\u503c\u662f Rust \u7684\u57fa\u672c\u6982\u5ff5\uff0c \u7406\u89e3\u5b83\u4eec\u662f\u6bcf\u4e2a\u5b66\u4e60\u8005\u7684\u9996\u8981\u4efb\u52a1\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u66f4\u65b0\u4e00\u89c8<\/h2>\n<p>\u5728\u535a\u6587\u7cfb\u5217\u7684\u7b2c\u4e00\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u6839\u636e RustRover \u4e2d\u7684\u4f7f\u7528\u6570\u636e\u5b9a\u4e49\u4e86\u6700\u5e38\u89c1\u7684 Rust \u7f16\u8bd1\u5668\u9519\u8bef\uff0c\u5e76\u8ba8\u8bba\u4e86\u7b2c 10 \u5230\u7b2c 6 \u540d\u7684\u9519\u8bef\u3002 \u5728\u4e0b\u4e00\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u7d22\u6700\u5e38\u89c1\u7684 5 \u4e2a\u9519\u8bef\uff0c\u5e76\u5c1d\u8bd5\u56de\u7b54\u6bcf\u4e2a Rust \u5f00\u53d1\u8005\u90fd\u4f1a\u8003\u8651\u7684\u95ee\u9898\uff1a\u201cRust \u7684\u54ea\u4e00\u90e8\u5206\u6700\u9ebb\u70e6\uff1f\u201d<\/p>\n<p>\u00a0<\/p>\n<p>\u672c\u535a\u6587\u82f1\u6587\u539f\u4f5c\u8005\uff1a<\/p>\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/secure.gravatar.com\/avatar\/?s=200&#038;r=g\" width=\"200\" height=\"200\" alt=\"\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo avatar-default\">\n                <\/div>\n                <div class=\"about-author__box-text\">\n                                                        <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"author":1297,"featured_media":418716,"comment_status":"closed","ping_status":"closed","template":"","categories":[],"tags":[],"cross-post-tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/rust\/431350"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/rust"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/types\/rust"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/users\/1297"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=431350"}],"version-history":[{"count":8,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/rust\/431350\/revisions"}],"predecessor-version":[{"id":431358,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/rust\/431350\/revisions\/431358"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media\/418716"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=431350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=431350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=431350"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/cross-post-tag?post=431350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}