{"id":768,"date":"2025-07-10T00:10:41","date_gmt":"2025-07-09T16:10:41","guid":{"rendered":"\/?p=768"},"modified":"2025-10-26T14:25:39","modified_gmt":"2025-10-26T06:25:39","slug":"c","status":"publish","type":"post","link":"\/?p=768","title":{"rendered":"C++"},"content":{"rendered":"\n

\u865a\u6790\u6784\u51fd\u6570~<\/h2>\n\n\n\n

\u865a\u6790\u6784\u51fd\u6570\u7684\u6838\u5fc3\u4f5c\u7528\uff1a<\/h3>\n\n\n\n

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\u4e3a\u4ec0\u4e48\u9700\u8981\u865a\u6790\u6784\u51fd\u6570\uff1f<\/h3>\n\n\n\n

\u5982\u679c\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u4e0d\u662f\u865a\u51fd\u6570\uff0c\u5f53\u7528\u57fa\u7c7b\u6307\u9488\u6307\u5411\u6d3e\u751f\u7c7b\u5bf9\u8c61\u5e76\u5220\u9664\u65f6\uff0c\u53ea\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\uff0c\u800c\u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u4e0d\u4f1a\u88ab\u6267\u884c\u3002\u8fd9\u4f1a\u5bfc\u81f4\u6d3e\u751f\u7c7b\u4e2d\u52a8\u6001\u5206\u914d\u7684\u5185\u5b58\uff08\u5982 new<\/code> \u51fa\u6765\u7684\u8d44\u6e90\uff09\u65e0\u6cd5\u91ca\u653e\uff0c\u9020\u6210\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n\n\n\n

\u4f8b\u5982\uff1a<\/p>\n\n\n\n

class Base {\npublic:\n    ~Base() { \/* \u57fa\u7c7b\u6e05\u7406 *\/ } \/\/ \u975e\u865a\u6790\u6784\u51fd\u6570\n};\n\nclass Derived : public Base {\npublic:\n    ~Derived() { \/* \u6d3e\u751f\u7c7b\u6e05\u7406\uff08\u5982\u91ca\u653e\u52a8\u6001\u5185\u5b58\uff09 *\/ }\n};\n\n\/\/ \u95ee\u9898\u573a\u666f\uff1a\u901a\u8fc7\u57fa\u7c7b\u6307\u9488\u5220\u9664\u6d3e\u751f\u7c7b\u5bf9\u8c61\nBase* ptr = new Derived(); \ndelete ptr; \/\/ \u4ec5\u8c03\u7528 Base \u7684\u6790\u6784\u51fd\u6570\uff0cDerived \u7684\u6790\u6784\u51fd\u6570\u4e0d\u6267\u884c \u2192 \u5185\u5b58\u6cc4\u6f0f\n<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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