{"id":878,"date":"2022-01-11T17:18:02","date_gmt":"2022-01-11T09:18:02","guid":{"rendered":"https:\/\/blog.frost-s.com\/?p=878"},"modified":"2022-01-11T18:01:50","modified_gmt":"2022-01-11T10:01:50","slug":"rust-%e5%ad%a6%e4%b9%a0%ef%bc%88%e5%89%8d%e7%bd%ae%ef%bc%9a%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.frost-s.com\/index.php\/2022\/01\/11\/rust-%e5%ad%a6%e4%b9%a0%ef%bc%88%e5%89%8d%e7%bd%ae%ef%bc%9a%e4%b8%80%ef%bc%89\/","title":{"rendered":"Rust \u5b66\u4e60\uff08\u524d\u7f6e\uff1a\u4e00\uff09"},"content":{"rendered":"\n

\u5b66\u4e60Rust \u524d\u7f6e\u6b65\u9aa4\uff0c\u522b\u7740\u6025\uff0c\u6211\u4eec\u4e0d\u4f1a\u76f4\u63a5\u5f00\u59cb\u4ecb\u7ecd\u8bed\u6cd5\uff0c\u800c\u4f1a\u5148\u6765\u56de\u987e\u90a3\u4e9b\u4f60\u5e73\u65f6\u8ba4\u4e3a\u975e\u5e38\u57fa\u7840\u7684\u77e5\u8bc6\uff0c\u6bd4\u5982\u8bf4\u5185\u5b58\u3001\u51fd\u6570\u3002<\/p>\n\n\n\n

\u7f16\u7a0b\u8bed\u8a00\u4e07\u53d8\u4e0d\u79bb\u5176\u5b97\uff0c\u5e95\u5c42\u903b\u8f91\u90fd\u662f\u4e0d\u53d8\u7684\u3002<\/p>\n\n\n\n

\u6240\u4ee5\u4eca\u5929\u6211\u4eec\u5f97\u56de\u5934\u91cd\u65b0\u601d\u8003\uff0c\u7f16\u7a0b\u4e2d\u90a3\u4e9b\u8033\u719f\u80fd\u8be6\u5374\u53c8\u4f3c\u61c2\u975e\u61c2\u7684\u57fa\u7840\u6982\u5ff5\uff0c\u641e\u6e05\u695a\u5e95\u5c42\u903b\u8f91\u3002\u800c\u4e14\u8fd9\u4e9b\u6982\u5ff5\uff0c\u5bf9\u6211\u4eec\u540e\u9762\u5b66\u4e60\u548c\u7406\u89e3 Rust \u4e2d\u7684\u77e5\u8bc6\u70b9\u975e\u5e38\u91cd\u8981\uff0c\u4e4b\u540e\uff0c\u6211\u4eec\u4e5f\u4f1a\u6839\u636e\u9700\u8981\u518d\u7a7f\u63d2\u6df1\u5165\u8bb2\u89e3\u3002<\/p>\n\n\n\n

\u4ee3\u7801\u4e2d\u6700\u57fa\u672c\u7684\u6982\u5ff5\u662f\u53d8\u91cf\u548c\u503c\uff0c\u800c\u5b58\u653e\u5b83\u4eec\u7684\u5730\u65b9\u662f\u5185\u5b58\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u4ece\u5185\u5b58\u5f00\u59cb\u3002<\/p>\n\n\n\n

\u5185\u5b58\uff1a<\/p>\n\n\n\n

\u5148\u6765rust \u7684hello world \uff0c\u67e5\u770b\u8fd9\u4e00\u53e5\u201chello world\u201d \u5bf9\u5e94\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/p>\n\n\n\n

let s = \"hello world\".to_string();<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u9996\u5148\uff0c\u201chello world\u201d \u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u5e38\u91cf\uff08string literal\uff09\uff0c\u5728\u7f16\u8bd1\u65f6\u88ab\u5b58\u5165\u53ef\u6267\u884c\u6587\u4ef6\u7684 .RODATA \u6bb5\uff08GCC\uff09\u6216\u8005 .RDATA \u6bb5\uff08VC++\uff09\uff0c\u7136\u540e\u5728\u7a0b\u5e8f\u52a0\u8f7d\u65f6\uff0c\u83b7\u5f97\u4e00\u4e2a\u56fa\u5b9a\u7684\u5185\u5b58\u5730\u5740\u3002<\/p>\n\n\n\n
\u5f53\u201chello world\u201d .to_string() \u7684\u65f6\u5019\uff0c\u5728\u5806\u4e0a\uff0c\u4e00\u5757\u65b0\u7684\u5185\u5b58\u88ab\u5206\u914d\u51fa\u6765\uff0c\u5e76\u5427 \u201chello world\u201d \u9010\u4e2a\u5b57\u8282\u62f7\u8d1d\u8fc7\u53bb\u3002<\/p>\n\n\n\n
\u5f53\u6211\u4eec\u628a\u5806\u4e0a\u7684\u6570\u636e\u8d4b\u503c\u7ed9 s \u7684\u65f6\u5019\uff0cs \u4f5c\u4e3a\u6808\u4e0a\u7684\u4e00\u4e2a\u53d8\u91cf\uff0c\u9700\u8981\u77e5\u9053\u5806\u4e0a\u7684\u5185\u5b58\u7684\u5730\u5740\uff0c\u7531\u4e8e\u5806\u4e0a\u7684\u6570\u636e\u5927\u5c0f\u4e0d\u786e\u5b9a\u4e14\u53ef\u4ee5\u589e\u957f\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u77e5\u9053size<\/p>\n\n\n\n
\u6700\u7ec8\uff0c\u4e3a\u4e86\u8868\u8ff0\u8fd9\u4e2a\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528\u4e86\u4e09\u4e2aword\uff1a<\/p>\n\n\n\n
\u7b2c\u4e00\u4e2a\uff0c\u8868\u793a\u6307\u9488\uff1b<\/p>\n\n\n\n
\u7b2c\u4e8c\u4e2a\uff0c \u8868\u793a\u5b57\u7b26\u4e32\u7684\u5f53\u524d\u957f\u5ea6\uff1b<\/p>\n\n\n\n
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\"\"<\/div>
\u5185\u5b58\u53d8\u6362\u6d41\u7a0b<\/figcaption><\/figure>\n\n\n\n
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\u4e0b\u9762\u6765\u590d\u4e60\u4e00\u4e0b\u5806\u6808\u7684\u6982\u5ff5<\/p>\n\n\n\n
\u6211\u4eec\u4f7f\u7528java \u4f1a\u5927\u6982\u4e86\u89e3\u5185\u5b58\u7ba1\u7406\u7684\u4e00\u4e9b\u89c4\u5219<\/p>\n\n\n\n
  • \u57fa\u672c\u7c7b\u578b\uff08primitive type\uff09\u5b58\u50a8\u5728\u6808\u4e0a\uff0c\u5bf9\u8c61\u5b58\u50a8\u5728\u5806\u4e0a\uff1b<\/li><\/ul>\n\n\n\n
    • \u5c11\u91cf\u6570\u636e\u5b58\u50a8\u5728\u6808\u4e0a\uff0c\u5927\u91cf\u7684\u6570\u636e\u5b58\u50a8\u5728\u5806\u4e0a\u3002<\/li><\/ul>\n\n\n\n
      \u8fd9\u4e24\u4e2a\u6982\u5ff5\u53ea\u662f\u521d\u7565\u6982\u5ff5<\/p>\n\n\n\n
      \u6211\u4eec\u6df1\u6316\u4e00\u4e0b\u5806\u6808\u7684\u8bbe\u8ba1\u539f\u7406\uff1a<\/p>\n\n\n\n
      \u6808<\/h3>\n\n\n\n
      \u6808\u662f\u7a0b\u5e8f\u8fd0\u884c\u7684\u57fa\u7840\u3002\u6bcf\u5f53\u4e00\u4e2a\u51fd\u6570\u88ab\u8c03\u7528\u65f6\uff0c\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\u5c31\u4f1a\u5728\u6808\u9876\u88ab\u5206\u914d\u51fa\u6765\uff0c\u8fd9\u5757\u5185\u5b58\u88ab\u79f0\u4e3a\u5e27\uff08frame\uff09\u3002<\/p>\n\n\n\n
      \u6211\u4eec\u77e5\u9053\uff0c\u6808\u662f\u81ea\u9876\u5411\u4e0b\u589e\u957f\u7684\uff0c\u4e00\u4e2a\u7a0b\u5e8f\u7684\u8c03\u7528\u6808\u6700\u5e95\u90e8\uff0c\u9664\u53bb\u5165\u53e3\u5e27\uff08entry frame\uff09\uff0c\u5c31\u662f main() \u51fd\u6570\u5bf9\u5e94\u7684\u5e27\uff0c\u800c\u968f\u7740 main() \u51fd\u6570\u4e00\u5c42\u5c42\u8c03\u7528\uff0c\u6808\u4f1a\u4e00\u5c42\u5c42\u6269\u5c55\uff1b\u8c03\u7528\u7ed3\u675f\uff0c\u6808\u53c8\u4f1a\u4e00\u5c42\u5c42\u56de\u6eaf\uff0c\u628a\u5185\u5b58\u91ca\u653e\u56de\u53bb\u3002<\/p>\n\n\n\n
      \u5728\u8c03\u7528\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u4e2a\u65b0\u7684\u5e27\u4f1a\u5206\u914d\u8db3\u591f\u7684\u7a7a\u95f4\u5b58\u50a8\u5bc4\u5b58\u5668\u7684\u4e0a\u4e0b\u6587\u3002\u5728\u51fd\u6570\u91cc\u4f7f\u7528\u5230\u7684\u901a\u7528\u5bc4\u5b58\u5668\u4f1a\u5728\u6808\u4fdd\u5b58\u4e00\u4e2a\u526f\u672c\uff0c\u5f53\u8fd9\u4e2a\u51fd\u6570\u8c03\u7528\u7ed3\u675f\uff0c\u901a\u8fc7\u526f\u672c\uff0c\u53ef\u4ee5\u6062\u590d\u51fa\u539f\u672c\u7684\u5bc4\u5b58\u5668\u7684\u4e0a\u4e0b\u6587\uff0c\u5c31\u50cf\u4ec0\u4e48\u90fd\u6ca1\u6709\u7ecf\u5386\u4e00\u6837\u3002\u6b64\u5916\uff0c\u51fd\u6570\u6240\u9700\u8981\u4f7f\u7528\u5230\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u4e5f\u90fd\u4f1a\u5728\u5e27\u5206\u914d\u7684\u65f6\u5019\u88ab\u9884\u7559\u51fa\u6765\u3002<\/p>\n\n\n\n
      \u6574\u4e2a\u8fc7\u7a0b\u4f60\u53ef\u4ee5\u518d\u770b\u770b\u8fd9\u5f20\u56fe\u8f85\u52a9\u7406\u89e3\uff1a<\/p>\n\n\n\n
      \"\"<\/div>
      \u6808<\/figcaption><\/figure>\n\n\n\n
      \u4e00\u4e2a\u51fd\u6570\u8fd0\u884c\uff0c\u600e\u4e48\u786e\u5b9a\u9700\u8981\u591a\u5927\u7684\u5e27\u5462\uff1f<\/p>\n\n\n\n
      \u8fd9\u8981\u5f52\u529f\u4e8e\u7f16\u8bd1\u5668\u3002\u5728\u7f16\u8bd1\u5e76\u4f18\u5316\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u4e00\u4e2a\u51fd\u6570\u5c31\u662f\u4e00\u4e2a\u6700\u5c0f\u7684\u7f16\u8bd1\u5355\u5143\u3002\uff08\u9700\u8981\u751f\u547d\u5468\u671f\u6807\u8bb0\u7684\u539f\u56e0\uff09<\/p>\n\n\n\n
      \u5728\u8fd9\u4e2a\u51fd\u6570\u91cc\uff0c\u7f16\u8bd1\u5668\u5f97\u77e5\u9053\u8981\u7528\u5230\u54ea\u4e9b\u5bc4\u5b58\u5668\u3001\u6808\u4e0a\u8981\u653e\u54ea\u4e9b\u5c40\u90e8\u53d8\u91cf\uff0c\u800c\u8fd9\u4e9b\u90fd\u8981\u5728\u7f16\u8bd1\u65f6\u786e\u5b9a\u3002\u6240\u4ee5\u7f16\u8bd1\u5668\u5c31\u9700\u8981\u660e\u786e\u6bcf\u4e2a\u5c40\u90e8\u53d8\u91cf\u7684\u5927\u5c0f\uff0c\u4ee5\u4fbf\u4e8e\u9884\u7559\u7a7a\u95f4\u3002<\/p>\n\n\n\n
      \u8fd9\u4e0b\u6211\u4eec\u5c31\u660e\u767d\u4e86\uff1a\u5728\u7f16\u8bd1\u65f6\uff0c\u4e00\u5207\u65e0\u6cd5\u786e\u5b9a\u5927\u5c0f\u6216\u8005\u5927\u5c0f\u53ef\u4ee5\u6539\u53d8\u7684\u6570\u636e\uff0c\u90fd\u65e0\u6cd5\u5b89\u5168\u5730\u653e\u5728\u6808\u4e0a<\/strong>\uff0c\u6700\u597d\u653e\u5728\u5806\u4e0a\u3002\u6bd4\u5982\u4e00\u4e2a\u51fd\u6570\uff0c\u53c2\u6570\u662f\u5b57\u7b26\u4e32\uff1a<\/p>\n\n\n\n
      \r\nfn say_name(name: String) {}\r\n\r\n\/\/ \u8c03\u7528\r\nsay_name(\"Lindsey\".to_string());\r\nsay_name(\"Rosie\".to_string());<\/code><\/pre>\n\n\n\n
      \u5b57\u7b26\u4e32\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5728\u7f16\u8bd1\u65f6\u5927\u5c0f\u4e0d\u786e\u5b9a\uff0c\u8fd0\u884c\u65f6\u6267\u884c\u5230\u5177\u4f53\u7684\u4ee3\u7801\u624d\u77e5\u9053\u5927\u5c0f\u3002\u6bd4\u5982\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u201cLindsey\u201d \u548c \u201cRosie\u201d \u7684\u957f\u5ea6\u4e0d\u4e00\u6837\uff0csay_name() \u51fd\u6570\u53ea\u6709\u5728\u8fd0\u884c\u7684\u65f6\u5019\uff0c\u624d\u77e5\u9053\u53c2\u6570\u7684\u5177\u4f53\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n
      \u6240\u4ee5\uff0c\u6211\u4eec\u65e0\u6cd5\u628a\u5b57\u7b26\u4e32\u672c\u8eab\u653e\u5728\u6808\u4e0a\uff0c\u53ea\u80fd\u5148\u5c06\u5176\u653e\u5728\u5806\u4e0a\uff0c\u7136\u540e\u5728\u6808\u4e0a\u5206\u914d\u5bf9\u5e94\u7684\u6307\u9488\uff0c\u5f15\u7528\u5806\u4e0a\u7684\u5185\u5b58\u3002<\/p>\n\n\n\n
      \u653e\u6808\u4e0a\u7684\u95ee\u9898<\/h3>\n\n\n\n
      \u4ece\u521a\u624d\u7684\u56fe\u4e2d\u4f60\u4e5f\u53ef\u4ee5\u76f4\u89c2\u770b\u5230\uff0c\u6808\u4e0a\u7684\u5185\u5b58\u5206\u914d\u662f\u975e\u5e38\u9ad8\u6548\u7684\u3002\u53ea\u9700\u8981\u6539\u52a8\u6808\u6307\u9488\uff08stack pointer\uff09\uff0c\u5c31\u53ef\u4ee5\u9884\u7559\u76f8\u5e94\u7684\u7a7a\u95f4\uff1b\u628a\u6808\u6307\u9488\u6539\u52a8\u56de\u6765\uff0c\u9884\u7559\u7684\u7a7a\u95f4\u53c8\u4f1a\u88ab\u91ca\u653e\u6389\u3002\u9884\u7559\u548c\u91ca\u653e\u53ea\u662f\u52a8\u52a8\u5bc4\u5b58\u5668\uff0c\u4e0d\u6d89\u53ca\u989d\u5916\u8ba1\u7b97\u3001\u4e0d\u6d89\u53ca\u7cfb\u7edf\u8c03\u7528\uff0c\u56e0\u800c\u6548\u7387\u5f88\u9ad8\u3002<\/p>\n\n\n\n
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      \u90a3\u4e3a\u4ec0\u4e48\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\uff0c\u6211\u4eec\u53c8\u8981\u907f\u514d\u628a\u5927\u91cf\u7684\u6570\u636e\u5206\u914d\u5728\u6808\u4e0a\u5462\uff1f<\/p>\n\n\n\n
      \u5728\u5b9e\u9645\u8c03\u7528\u7684\u65f6\u5019\u9700\u8981\u8003\u8651\u5230\u6808\u7684\u5927\u5c0f\uff0c\u907f\u514d\u6808\u6ea2\u51fa\uff08stack overflow\uff09<\/strong>\uff0c\u4e00\u65e6\u5f53\u524d\u7a0b\u5e8f\u7684\u8c03\u7528\u6808\u8d85\u51fa\u4e86\u7cfb\u7edf\u5141\u8bb8\u7684\u6700\u5927\u6808\u7a7a\u95f4\uff0c\u65e0\u6cd5\u521b\u5efa\u65b0\u7684\u5e27\uff0c\u6765\u8fd0\u884c\u4e0b\u4e00\u4e2a\u8981\u6267\u884c\u7684\u51fd\u6570\uff0c\u5c31\u4f1a\u53d1\u751f\u6808\u6ea2\u51fa\uff0c\u8fd9\u65f6\u7a0b\u5e8f\u4f1a\u88ab\u7cfb\u7edf\u7ec8\u6b62\uff0c\u4ea7\u751f\u5d29\u6e83\u4fe1\u606f\u3002<\/p>\n\n\n\n
      \u8fc7\u5927\u7684\u6808\u5185\u5b58\u5206\u914d\u662f\u5bfc\u81f4\u6808\u6ea2\u51fa\u7684\u539f\u56e0\u4e4b\u4e00\uff0c\u66f4\u5e7f\u4e3a\u4eba\u77e5\u7684\u539f\u56e0\u662f\u9012\u5f52\u51fd\u6570\u6ca1\u6709\u59a5\u5584\u7ec8\u6b62\u3002\u4e00\u4e2a\u9012\u5f52\u51fd\u6570\u4f1a\u4e0d\u65ad\u8c03\u7528\u81ea\u5df1\uff0c\u6bcf\u6b21\u8c03\u7528\u90fd\u4f1a\u5f62\u6210\u4e00\u4e2a\u65b0\u7684\u5e27\uff0c\u5982\u679c\u9012\u5f52\u51fd\u6570\u65e0\u6cd5\u7ec8\u6b62\uff0c\u6700\u7ec8\u5c31\u4f1a\u5bfc\u81f4\u6808\u6ea2\u51fa\u3002<\/p>\n\n\n\n
      <\/p>\n\n\n\n
      \u5806\u4e0a\u7684\u95ee\u9898<\/h3>\n\n\n\n
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