“`” C++\u4e2d\u56db\u79cd\u7c7b\u578b\u8f6c\u6362\u662f\uff1astatic_cast, dynamic_cast, const_cast, reinterpret_cast<\/p>\n
1\u3001const_cast<\/p>\n
\u7528\u4e8e\u5c06const\u53d8\u91cf\u8f6c\u4e3a\u975econst<\/p>\n
2\u3001static_cast<\/p>\n
\u7528\u4e8e\u5404\u79cd\u9690\u5f0f\u8f6c\u6362\uff0c\u6bd4\u5982\u975econst\u8f6cconst\uff0cvoid*\u8f6c\u6307\u9488\u7b49, static_cast\u80fd\u7528\u4e8e\u591a\u6001\u5411\u4e0a\u8f6c\u5316\uff0c\u5982\u679c\u5411\u4e0b\u8f6c\u80fd\u6210\u529f\u4f46\u662f\u4e0d\u5b89\u5168\uff0c\u7ed3\u679c\u672a\u77e5\uff1b<\/p>\n
3\u3001dynamic_cast<\/p>\n
\u7528\u4e8e\u52a8\u6001\u7c7b\u578b\u8f6c\u6362\u3002\u53ea\u80fd\u7528\u4e8e\u542b\u6709\u865a\u51fd\u6570\u7684\u7c7b\uff0c\u7528\u4e8e\u7c7b\u5c42\u6b21\u95f4\u7684\u5411\u4e0a\u548c\u5411\u4e0b\u8f6c\u5316\u3002\u53ea\u80fd\u8f6c\u6307\u9488\u6216\u5f15\u7528\u3002\u5411\u4e0b\u8f6c\u5316\u65f6\uff0c\u5982\u679c\u662f\u975e\u6cd5\u7684\u5bf9\u4e8e\u6307\u9488\u8fd4\u56deNULL\uff0c\u5bf9\u4e8e\u5f15\u7528\u629b\u5f02\u5e38\u3002\u8981\u6df1\u5165\u4e86\u89e3\u5185\u90e8\u8f6c\u6362\u7684\u539f\u7406\u3002<\/p>\n
\u5411\u4e0a\u8f6c\u6362\uff1a\u6307\u7684\u662f\u5b50\u7c7b\u5411\u57fa\u7c7b\u7684\u8f6c\u6362<\/p>\n
\u5411\u4e0b\u8f6c\u6362\uff1a\u6307\u7684\u662f\u57fa\u7c7b\u5411\u5b50\u7c7b\u7684\u8f6c\u6362<\/p>\n
\u5b83\u901a\u8fc7\u5224\u65ad\u5728\u6267\u884c\u5230\u8be5\u8bed\u53e5\u7684\u65f6\u5019\u53d8\u91cf\u7684\u8fd0\u884c\u65f6\u7c7b\u578b\u548c\u8981\u8f6c\u6362\u7684\u7c7b\u578b\u662f\u5426\u76f8\u540c\u6765\u5224\u65ad\u662f\u5426\u80fd\u591f\u8fdb\u884c\u5411\u4e0b\u8f6c\u6362\u3002<\/p>\n
4\u3001reinterpret_cast<\/p>\n
\u51e0\u4e4e\u4ec0\u4e48\u90fd\u53ef\u4ee5\u8f6c\uff0c\u6bd4\u5982\u5c06int\u8f6c\u6307\u9488\uff0c\u53ef\u80fd\u4f1a\u51fa\u95ee\u9898\uff0c\u5c3d\u91cf\u5c11\u7528\uff1b<\/p>\n
5\u3001\u4e3a\u4ec0\u4e48\u4e0d\u4f7f\u7528C\u7684\u5f3a\u5236\u8f6c\u6362\uff1f<\/p>\n
C\u7684\u5f3a\u5236\u8f6c\u6362\u8868\u9762\u4e0a\u770b\u8d77\u6765\u529f\u80fd\u5f3a\u5927\u4ec0\u4e48\u90fd\u80fd\u8f6c\uff0c\u4f46\u662f\u8f6c\u5316\u4e0d\u591f\u660e\u786e\uff0c\u4e0d\u80fd\u8fdb\u884c\u9519\u8bef\u68c0\u67e5\uff0c\u5bb9\u6613\u51fa\u9519\u3002<\/p>\n
<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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