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\u4e0a\u4e00\u6bb5\u4e2d\u63d0\u5230\u4e86C\u8bed\u8a00\u91c7\u7528\u4e86\u5206\u6bb5\u7f16\u8bd1\u6765\u89e3\u51b3\u7a0b\u5e8f\u201c\u7275\u4e00\u53d1\u800c\u52a8\u5168\u8eab\u201d\u7684\u95ee\u9898\uff0c\u5f53\u7136C++\u5f53\u4e2d\u4e5f\u91c7\u7528\u4e86\u8fd9\u4e00\u5177\u6709\u4f18\u52bf\u7684\u7279\u6027\uff0c\u7531\u5176\u5728\u5927\u578b\u5de5\u7a0b\u4e2d\uff0c\u5f88\u6709\u53ef\u80fd\u4e00\u6b21\u5168\u5c40\u7684\u7f16\u8bd1\u8981\u8017\u8d39\u597d\u51e0\u4e2a\u5c0f\u65f6\u751a\u81f3\u597d\u51e0\u5929\u7684\u65f6\u95f4\u3002\u4f46\u662f\u5728\u5206\u6bb5\u7f16\u8bd1\u7684\u65f6\u5019\uff0c\u4e5f\u6709\u4e00\u4e9b\u95ee\u9898\u9700\u8981\u601d\u8003\uff0c\u9996\u5148\u5bf9\u4e8e\u4e00\u4e2a\u4ee3\u7801\u5757\uff0c\u5f53\u5b83\u8981\u5f15\u7528\u5176\u4ed6\u4ee3\u7801\u5757\u6216\u8005\u6570\u636e\u5757\u7684\u65f6\u5019\uff0c\u6700\u8d77\u7801\u8981\u77e5\u9053\u4e00\u4e9b\u5176\u4ed6\u4ee3\u7801\u5757\u6216\u8005\u6570\u636e\u5757\u7684\u5fc5\u8981\u4fe1\u606f\uff0c\u8fd9\u6837\u7f16\u8bd1\u5668\u624d\u80fd\u4e3a\u4ed6\u6b63\u786e\u7684\u9884\u7559\u4e00\u4e2a\u201c\u63a5\u53e3\u201d\u8ba9\u8fde\u63a5\u5668\u5c06\u5b83\u5f15\u7528\u7684\u4ee3\u7801\u5757\u8fde\u63a5\u4e0a\u6765\uff0c\u5e76\u4e14\u63d0\u4f9b\u7ed9\u5b83\u6b63\u786e\u7684\u4fe1\u606f\u3002\u5bf9\u4e8e\u4e00\u4e2a\u6570\u636e\u5757\u8fd9\u4e2a\u57fa\u672c\u4fe1\u606f\u5c31\u662f\u5b83\u7684\u540d\u5b57\u548c\u7c7b\u578b\u7ec4\u6210\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4ee3\u7801\u5757\u5219\u662f\u5b83\u7684\u540d\u5b57\u8fd8\u6709\u5b83\u9700\u8981\u7684\u4fe1\u606f\u7c7b\u578b\u4ee5\u53ca\u6267\u884c\u5b8c\u8fd9\u4e2a\u4ee3\u7801\u5757\u4e4b\u540e\u53ef\u4ee5\u5f97\u5230\u7684\u4fe1\u606f\u7c7b\u578b\u3002\u5f53\u7136\u5728C\u548cC++\u5f53\u4e2d\u8fd9\u4e9b\u4ee3\u7801\u5757\u7684\u6700\u5c0f\u7684\u5355\u4f4d\u4e3a\u51fd\u6570<\/strong>\uff0c\u800c\u5f15\u7528\u8fd9\u4e9b\u51fd\u6570\u7684\u52a8\u4f5c\u88ab\u79f0\u4e3a\u51fd\u6570\u7684\u8c03\u7528\uff0c\u51fd\u6570\u8c03\u7528\u7684\u65f6\u5019\u4fbf\u9700\u8981\u4f20\u9012\u7ed9\u51fd\u6570\u5b83\u6240\u9700\u8981\u7684\u53c2\u6570<\/strong>\uff0c\u5e76\u4e14\u8bfb\u53d6\u51fd\u6570\u6267\u884c\u5b8c\u4e4b\u540e\u4f20\u9012\u56de\u6765\u7684\u8fd4\u56de\u503c<\/strong>\u3002\u7f16\u8bd1\u5668\u4e3a\u4e86\u4fdd\u8bc1\u80fd\u591f\u6b63\u786e\u7684\u4e3a\u4e00\u4e2a\u51fd\u6570\u7684\u8c03\u7528\u9884\u7559\u63a5\u53e3\uff0c\u5e76\u4e14\u53ef\u4ee5\u8ba9\u7f16\u8bd1\u5668\u68c0\u67e5\u6211\u4eec\u4f20\u5165\u6570\u636e\u7684\u6b63\u786e\u6027\uff0c\u4e8e\u662f\u8981\u6c42\u6211\u4eec\u5728\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u4e4b\u524d\u4e00\u5b9a\u8981\u5bf9\u8fd9\u4e2a\u51fd\u6570\u8fdb\u884c\u58f0\u660e\uff0c<\/strong>\u8fd9\u6837\u7f16\u8bd1\u5668\u624d\u53ef\u4ee5\u83b7\u5f97\u8db3\u591f\u7684\u4fe1\u606f\u6765\u907f\u514d\u9519\u8bef\u3002\u800c\u8fd9\u4e2a\u51fd\u6570\u7684\u672c\u4f53\u53ef\u4ee5\u653e\u7f6e\u5728\u53e6\u5916\u7684\u7f16\u8bd1\u5355\u5143\u5f53\u4e2d\uff0c\u800c\u8fd9\u5305\u542b\u4e86\u4ee3\u7801\u5757\u7684\u51fd\u6570\u672c\u4f53\u5219\u79f0\u4e3a\u51fd\u6570\u7684\u5b9a\u4e49<\/strong>\u3002\u53ef\u4ee5\u7531\u7f16\u8bd1\u5668\u5bf9\u5176\u8fdb\u884c\u5355\u72ec\u7684\u7f16\u8bd1\uff0c\u53ea\u8981\u6b63\u786e\u7684\u914d\u7f6e\u4e86\u8fde\u63a5\u5668\uff0c\u8fde\u63a5\u5668\u603b\u80fd\u6b63\u786e\u7684\u5c06\u5b83\u4eec\u62fc\u63a5\u8d77\u6765\u3002<\/p>\n

\u201c\u58f0\u660e\u201d\u662f\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u6982\u5ff5\uff0c\u5b83\u4f1a\u544a\u8bc9\u7f16\u8bd1\u5668\u6709\u8fd9\u6837\u4e00\u4e2a\u540d\u5b57\u7684\u6570\u636e\u5757\u6216\u8005\u51fd\u6570\uff0c\u5b83\u662f\u4ec0\u4e48\u4ec0\u4e48\u6837\u5b50\u7684\uff0c\u4f60\u53ef\u4ee5\u5728\u63a5\u4e0b\u6765\u7684\u4ee3\u7801\u5f53\u4e2d\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u9884\u7559\u51fa\u5b83\u7684\u63a5\u53e3\uff0c\u5e76\u8ba9\u8fde\u63a5\u5668\u5c06\u5b83\u7684\u51fd\u6570\u4f53\u8fde\u63a5\u4e0a\u53bb\uff0c\u63a5\u4e0b\u6765\u7684\u4ee3\u7801\u4fbf\u53ef\u4ee5\u6b63\u786e\u8fd0\u884c\u3002\u800c\u201c\u5b9a\u4e49\u201d\u5219\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\u4e0b\u8fb9\u82b1\u62ec\u53f7\u5f53\u4e2d\u7684\u4ee3\u7801\u5757\u5373\u662f\u8fd9\u4e2a\u540d\u5b57\uff0c\u6216\u8005\u8bf7\u5728\u7a0b\u5e8f\u8fd0\u884c\u81f3\u8fd9\u4e2a\u4f4d\u7f6e\u65f6\u4e3a\u8fd9\u4e2a\u540d\u5b57\u7684\u53d8\u91cf\u5206\u914d\u7a7a\u95f4\u3002\u5728C\u548cC++\u5f53\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5f88\u591a\u5730\u65b9\u8fdb\u884c\u76f8\u540c\u7684\u58f0\u660e\uff0c\u4f46\u662f\u5b9a\u4e49\u53ea\u80fd\u51fa\u73b0\u5728\u4e00\u4e2a\u5730\u65b9\uff0c\u5982\u679c\u4e00\u4e2a\u51fd\u6570\u6216\u8005\u53d8\u91cf\u5177\u6709\u591a\u4e2a\u5b9a\u4e49\u7684\u8bdd\uff0c\u8fde\u63a5\u5668\u5c06\u4f1a\u62a5\u544a\u51fa\u9519\u8bef\u3002<\/p>\n

\u4ee5\u4e0b\u4e3a\u4e00\u4e9b\u8be6\u7ec6\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u51e0\u4e4e\u5168\u90e8\u6458\u81ea\u4e66\u4e0a\u3002<\/p>\n

\u9996\u5148\u58f0\u660e<\/strong>\u4e00\u4e2a\u51fd\u6570\uff1a<\/p>\n

double func1(int, float);<\/em><\/strong><\/p>\n

\u5176\u4e2dint\u8868\u793a\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\uff0cfunc1\u4e3a\u51fd\u6570\u540d\u79f0\uff0c\u53ef\u4ee5\u662f\u9664\u4e86\u4fdd\u7559\u5b57\u4ee5\u5916\u7684\u4efb\u4f55\u5b57\u7b26\u4e32\uff0c\u62ec\u53f7\u5f53\u4e2d\u662f\u51fd\u6570\u7684\u53c2\u6570\u8868\uff0c\u4f9d\u6b21\u4e3a\u51fd\u6570\u8f93\u5165\u53c2\u6570\u7684\u7c7b\u578b\u3002\u5f53\u7136\u51fd\u6570\u58f0\u660e\u7684\u65f6\u5019\u4e5f\u662f\u53ef\u4ee5\u7ed9\u53c2\u6570\u547d\u540d\u7684\u53ea\u4e0d\u8fc7\u8fd9\u91cc\u7684\u547d\u540d\u5bf9\u4e8e\u7f16\u8bd1\u5668\u6765\u4e66\u6beb\u65e0\u610f\u4e49\uff0c\u5b83\u4f1a\u5c06\u5176\u5ffd\u7565\u6389\uff0c\u4e0d\u8fc7\u7ed9\u5b83\u547d\u540d\u4f1a\u7ed9\u7a0b\u5e8f\u5458\u9605\u8bfb\u4ee3\u7801\u5e26\u6765\u5f88\u591a\u4fbf\u5229\u3002\u6b63\u5982\u4e0b\u9762\u7684\u58f0\u660e\u548c\u4e0a\u9762\u7684\u58f0\u660e\u610f\u4e49\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n

double func1(int a, float b);<\/strong><\/em><\/p>\n

\u5f53\u7136\u503c\u5f97\u6ce8\u610f\u7684\u4e00\u70b9\u662f\u5728C\u548cC++\u5f53\u4e2d\u7a7a\u7684\u53c2\u6570\u5217\u8868\u5177\u6709\u4e0d\u540c\u7684\u610f\u601d\uff0c\u5bf9\u4e8eC\u8bed\u8a00\u6765\u8bf4\u4e00\u4e2a\u7a7a\u7684\u53c2\u6570\u5217\u8868\u610f\u5473\u7740\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u5339\u914d\u4efb\u610f\u7684\u53c2\u91cf\u8868\uff0c\u800c\u5bf9\u4e8eC++\u6765\u8bf4\u8fd9\u610f\u5473\u7740\u8fd9\u4e2a\u51fd\u6570\u4e0d\u80fd\u63a5\u53d7\u4efb\u4f55\u53c2\u6570\u3002\u5f53\u7136\u5982\u679c\u9700\u8981\u5728C\u8bed\u8a00\u5f53\u4e2d\u8868\u793a\u8fd9\u4e2a\u51fd\u6570\u4e0d\u80fd\u63a5\u53d7\u4efb\u4f55\u53c2\u6570\u7684\u8bdd\u9700\u8981\u5728\u62ec\u53f7\u5185\u52a0\u5165void\uff0c\u800c\u5728C++\u5f53\u4e2d\u8868\u793a\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u63a5\u53d7\u4efb\u4f55\u53c2\u6570\u7684\u8bdd\u9700\u8981\u5728\u62ec\u53f7\u5185\u52a0\u5165\u7701\u7565\u53f7\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n

int func2();<\/strong><\/em><\/p>\n

int func2(void);<\/strong><\/em><\/p>\n

int func2(…);<\/strong><\/em><\/p>\n

\u800c\u51fd\u6570\u7684\u5b9a\u4e49\u4e5f\u4e0d\u662f\u7279\u522b\u590d\u6742\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u5373\u662f\u628a\u51fd\u6570\u58f0\u660e\u90e8\u5206\u7684\u5206\u53f7\u66ff\u6362\u6210\u4e3a\u82b1\u62ec\u53f7\u5c31\u597d\uff1a<\/p>\n

double func1(int a, float b) {}<\/strong><\/em><\/p>\n

\u82b1\u62ec\u53f7\u4e2d\u95f4\u4e3a\u51fd\u6570\u7684\u4e3b\u4f53\u90e8\u5206\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u51fd\u6570\u5f53\u4e2d\u4f7f\u7528\u5230\u4e86\u53c2\u6570\u8868\u4e2d\u7684\u67d0\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u8fd9\u4e2a\u53c2\u6570\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u540d\u5b57\uff0c\u5373\u6807\u8bc6\u7b26<\/strong>\uff0c\u800c\u5982\u679c\u59cb\u7ec8\u6ca1\u6709\u7528\u5230\u67d0\u4e2a\u53c2\u6570\uff0c\u5219\u8fd9\u4e2a\u53c2\u6570\u53ef\u4ee5\u53ea\u5199\u5b83\u7684\u53c2\u6570\u7c7b\u578b\uff0c\u8fd9\u6837\u7684\u53c2\u6570\u79f0\u4e3a\u5360\u4f4d\u7b26\u3002\u4e00\u4e2a\u7528\u9014\u662f\u51fd\u6570\u66f4\u65b0\u540e\u53c2\u6570\u9700\u6c42\u51cf\u5c11\u65f6\u53ef\u4ee5\u8fdb\u884c\u5360\u4f4d\u800c\u4e0d\u5fc5\u8ba9\u7f16\u8bd1\u5668\u5f39\u51fa\u8b66\u544a\u3002<\/p>\n

\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\u5219\u7a0d\u7a0d\u6709\u70b9\u590d\u6742\uff0c\u8fd9\u662f\u4e00\u4e2a\u8010\u4eba\u5bfb\u5473\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u5f53\u6211\u4eec\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\u7684\u65f6\u5019\uff0c\u7f16\u8bd1\u5668\u4fbf\u83b7\u53d6\u5230\u4e86\u8db3\u591f\u7684\u4fe1\u606f\u53ef\u4ee5\u5bf9\u5b83\u8fdb\u884c\u5185\u5b58\u5206\u914d\uff0c\u6240\u4ee5\u5982\u679c\u6211\u4eec\u5355\u72ec\u5199\u51fa\u4e00\u884c\u7c7b\u4f3c\u4e8e\uff1a<\/p>\n

int a;<\/strong><\/em><\/p>\n

\u8fd9\u6837\u7684\u4ee3\u7801\u4e4b\u540e\uff0c\u7f16\u8bd1\u5668\u9ed8\u8ba4\u8fd9\u662f\u4e00\u6761\u58f0\u660e\u548c\u5b9a\u4e49\u3002\u4f46\u662f\u5982\u679c\u6211\u4eec\u4e0d\u60f3\u5728\u8fd9\u4e2a\u5730\u65b9\u5b9a\u4e49\u53d8\u91cf\u7684\u8bdd\uff0c\u6211\u4eec\u9700\u8981\u5411\u7f16\u8bd1\u5668\u7279\u522b\u8bf4\u660e\u3002\u901a\u8fc7\u5728\u524d\u8fb9\u52a0\u4e0aextern<\/strong>\u5173\u952e\u5b57\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff1a<\/p>\n

extern int a;<\/strong><\/em><\/p>\n

\u8fd9\u6837\u5c31\u53ef\u4ee5\u533a\u5206\u5b9a\u4e49\u548c\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\u4e86\uff0c\u5f53\u7136\u51fd\u6570\u4e5f\u53ef\u4ee5\u7528\u76f8\u540c\u7684\u65b9\u6cd5\u533a\u5206\uff0c\u4e0d\u8fc7\u4f1a\u663e\u5f97\u591a\u6b64\u4e00\u4e3e\u3002<\/p>\n

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