{"id":258501,"date":"2024-05-15T12:40:36","date_gmt":"2024-05-15T04:40:36","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/258501.html"},"modified":"2024-05-15T12:40:43","modified_gmt":"2024-05-15T04:40:43","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-main-%e5%87%bd%e6%95%b0%e6%b2%a1%e4%bb%a3%e7%a0%81%e8%bf%98%e6%98%af%e5%87%ba%e7%8e%b0%e6%ae%b5%e9%94%99%e8%af%af","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/258501.html","title":{"rendered":"\u4e3a\u4ec0\u4e48 main \u51fd\u6570\u6ca1\u4ee3\u7801\u8fd8\u662f\u51fa\u73b0\u6bb5\u9519\u8bef"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27105352\/2643d5e9-72e2-4cd1-b9db-ff350e09d2c7.webp\" alt=\"\u4e3a\u4ec0\u4e48 main \u51fd\u6570\u6ca1\u4ee3\u7801\u8fd8\u662f\u51fa\u73b0\u6bb5\u9519\u8bef\" \/><\/p>\n<p><p><strong>\u5373\u4f7f<code>m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n<\/code>\u51fd\u6570\u4e2d\u6ca1\u6709\u4ee3\u7801\uff0c\u4e5f\u53ef\u80fd\u51fa\u73b0\u6bb5\u9519\u8bef\uff08Segmentation Fault\uff09\u7684\u539f\u56e0\u4e3b\u8981\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a\u672a\u521d\u59cb\u5316\u7684\u5168\u5c40\u53d8\u91cf\u4f7f\u7528\u9519\u8bef\u3001\u5806\u6808\u5185\u5b58\u6ea2\u51fa\u3001\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u9650\u5236\u3001\u7f16\u8bd1\u5668\u4f18\u5316\u5bfc\u81f4\u7684\u672a\u5b9a\u4e49\u884c\u4e3a\u3001\u4ee5\u53ca\u5916\u90e8\u5e93\u6216\u8fd0\u884c\u65f6\u9519\u8bef\u3002<\/strong> \u6700\u5e38\u89c1\u7684\u539f\u56e0\u4e4b\u4e00\u662f<strong>\u672a\u521d\u59cb\u5316\u7684\u5168\u5c40\u53d8\u91cf\u4f7f\u7528\u9519\u8bef<\/strong>\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c3d\u7ba1<code>main<\/code>\u51fd\u6570\u672c\u8eab\u53ef\u80fd\u4e0d\u5305\u542b\u4efb\u4f55\u4ee3\u7801\uff0c\u7a0b\u5e8f\u5728\u6267\u884c\u524d\u7684\u521d\u59cb\u5316\u9636\u6bb5\u6216\u5728\u5c1d\u8bd5\u8bbf\u95ee\u8fd9\u4e9b\u5168\u5c40\u53d8\u91cf\u65f6\u53ef\u80fd\u4f1a\u8bd5\u56fe\u8bbf\u95ee\u672a\u5206\u914d\u6216\u65e0\u6743\u8bbf\u95ee\u7684\u5185\u5b58\u533a\u57df\uff0c\u4ece\u800c\u89e6\u53d1\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u672a\u521d\u59cb\u5316\u7684\u5168\u5c40\u53d8\u91cf\u4f7f\u7528\u9519\u8bef<\/h3>\n<\/p>\n<p><p>\u5f53\u7a0b\u5e8f\u5305\u542b\u5168\u5c40\u53d8\u91cf\u6216\u9759\u6001\u53d8\u91cf\u800c\u8fd9\u4e9b\u53d8\u91cf\u672a\u88ab\u6b63\u786e\u521d\u59cb\u5316\u65f6\uff0c\u5b83\u4eec\u53ef\u80fd\u4f1a\u88ab\u8bbe\u7f6e\u4e3anull\u6216\u4efb\u610f\u503c\u3002\u5982\u679c\u7a0b\u5e8f\u5c1d\u8bd5\u8bbf\u95ee\u8fd9\u4e9b\u53d8\u91cf\u7684\u503c\u6216\u5c06\u5b83\u4eec\u4f5c\u4e3a\u5f15\u7528\u8fdb\u884c\u64cd\u4f5c\uff0c\u5c31\u53ef\u80fd\u5c1d\u8bd5\u8bfb\u53d6\u6216\u5199\u5165\u672a\u5206\u914d\u7ed9\u7a0b\u5e8f\u7684\u5185\u5b58\u5730\u5740\u3002\u8fd9\u79cd\u672a\u6388\u6743\u7684\u5185\u5b58\u8bbf\u95ee\u662f\u6bb5\u9519\u8bef\u7684\u5e38\u89c1\u539f\u56e0\u3002<\/p>\n<\/p>\n<p><p>\u5168\u5c40\u53d8\u91cf\u548c\u9759\u6001\u53d8\u91cf\u5728\u7a0b\u5e8f\u542f\u52a8\u65f6\u7531\u8fd0\u884c\u65f6\u73af\u5883\u81ea\u52a8\u521d\u59cb\u5316\u3002\u5bf9\u4e8e\u672a\u660e\u786e\u521d\u59cb\u5316\u7684\u5168\u5c40\u6216\u9759\u6001\u53d8\u91cf\uff0cC\u548cC++\u6807\u51c6\u5206\u522b\u6709\u4e0d\u540c\u7684\u5904\u7406\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u5168\u5c40\u548c\u9759\u6001\u53d8\u91cf\u5728C++\u4e2d\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u96f6\uff0c\u800cC\u4e2d\u8fd9\u6837\u7684\u521d\u59cb\u5316\u4e0d\u662f\u4fdd\u8bc1\u7684\u3002\u56e0\u6b64\uff0c\u5728C\u7a0b\u5e8f\u4e2d\uff0c\u5982\u679c\u5f00\u53d1\u8005\u5ffd\u7565\u4e86\u660e\u786e\u521d\u59cb\u5316\u5168\u5c40\u548c\u9759\u6001\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u5f15\u8d77\u672a\u5b9a\u4e49\u884c\u4e3a\uff0c\u5305\u62ec\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u5806\u6808\u5185\u5b58\u6ea2\u51fa<\/h3>\n<\/p>\n<p><p>\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u9700\u8981\u5185\u5b58\u6765\u5b58\u50a8\u53d8\u91cf\u3001\u51fd\u6570\u8c03\u7528\u7684\u4e0a\u4e0b\u6587\u4ee5\u53ca\u4e34\u65f6\u6570\u636e\u3002\u8fd9\u901a\u5e38\u5728\u5806\uff08heap\uff09\u548c\u6808\uff08stack\uff09\u5185\u5b58\u533a\u57df\u4e2d\u8fdb\u884c\u7ba1\u7406\u3002\u5982\u679c\u7a0b\u5e8f\u7684\u8c03\u7528\u5c42\u6b21\u8fc7\u6df1\uff0c\u5982\u9012\u5f52\u8c03\u7528\u672a\u6b63\u786e\u7ec8\u6b62\uff0c\u6216\u8005\u5206\u914d\u4e86\u5927\u91cf\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6808\u6ea2\u51fa\u3002\u6808\u6ea2\u51fa\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u8bd5\u56fe\u8bbf\u95ee\u6808\u4e4b\u5916\u7684\u5185\u5b58\u533a\u57df\uff0c\u8fdb\u800c\u89e6\u53d1\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><p>\u9012\u5f52\u51fd\u6570\u5982\u679c\u6ca1\u6709\u6b63\u786e\u7684\u9000\u51fa\u6761\u4ef6\uff0c\u6216\u8005\u9012\u5f52\u6df1\u5ea6\u8fc7\u5927\u800c\u8d85\u51fa\u4e86\u6808\u7684\u5bb9\u91cf\u9650\u5236\uff0c\u90fd\u53ef\u4ee5\u5f15\u8d77\u6808\u6ea2\u51fa\u3002\u6bcf\u6b21\u51fd\u6570\u8c03\u7528\u65f6\uff0c\u8fd4\u56de\u5730\u5740\u548c\u5c40\u90e8\u53d8\u91cf\u7b49\u4fe1\u606f\u90fd\u4f1a\u88ab\u63a8\u5165\u8c03\u7528\u6808\u3002\u8fc7\u6df1\u7684\u8c03\u7528\u5c42\u6b21\u4f1a\u8017\u5c3d\u6808\u7a7a\u95f4\uff0c\u5bfc\u81f4\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u9650\u5236<\/h3>\n<\/p>\n<p><p>\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u8fdb\u7a0b\u53ef\u7528\u7684\u8d44\u6e90\u6709\u4e00\u5b9a\u7684\u9650\u5236\uff0c\u4f8b\u5982\u5185\u5b58\u4f7f\u7528\u91cf\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u6570\u91cf\u7b49\u3002\u5982\u679c\u7a0b\u5e8f\u8bd5\u56fe\u8d85\u51fa\u8fd9\u4e9b\u9650\u5236\uff0c\u53ef\u80fd\u65e0\u6cd5\u5206\u914d\u6240\u9700\u7684\u8d44\u6e90\uff0c\u4ece\u800c\u5bfc\u81f4\u6bb5\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u8fc7\u591a\u5730\u4f7f\u7528\u52a8\u6001\u5185\u5b58\u5206\u914d\uff08\u5982\u9891\u7e41\u8c03\u7528<code>malloc<\/code>\u6216<code>new<\/code>\u800c\u4e0d\u9002\u5f53\u91ca\u653e\uff09\uff0c\u53ef\u80fd\u4f1a\u8017\u5c3d\u53ef\u7528\u7684\u5185\u5b58\u8d44\u6e90\uff0c\u5bfc\u81f4\u540e\u7eed\u5185\u5b58\u5206\u914d\u5931\u8d25\uff0c\u8fdb\u800c\u89e6\u53d1\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><p>\u8d44\u6e90\u9650\u5236\u4e0d\u4ec5\u5305\u62ec\u5185\u5b58\u3002\u4f8b\u5982\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570\u91cf\u662f\u6709\u9650\u5236\u7684\u3002\u5982\u679c\u7a0b\u5e8f\u8bd5\u56fe\u6253\u5f00\u8d85\u8fc7\u8be5\u9650\u5236\u7684\u6587\u4ef6\u6570\u91cf\uff0c\u6587\u4ef6\u6253\u5f00\u64cd\u4f5c\u5c06\u5931\u8d25\uff0c\u53ef\u80fd\u5f15\u8d77\u7a0b\u5e8f\u540e\u7eed\u64cd\u4f5c\u7684\u5f02\u5e38\uff0c\u5305\u62ec\u89e6\u53d1\u6bb5\u9519\u8bef\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u7f16\u8bd1\u5668\u4f18\u5316\u5bfc\u81f4\u7684\u672a\u5b9a\u4e49\u884c\u4e3a<\/h3>\n<\/p>\n<p><p>\u7f16\u8bd1\u5668\u4f18\u5316\u662f\u63d0\u5347\u7a0b\u5e8f\u6267\u884c\u6548\u7387\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u4f46\u662f\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5f00\u53d1\u8005\u7684\u4ee3\u7801\u53ef\u80fd\u5f15\u5165\u4e86\u672a\u5b9a\u4e49\u7684\u884c\u4e3a\uff08Undefined 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