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                搞過MFC的人都知道cstring,給我們提供了很多便利的方法。 CString 是一種很有用的數據類型。它們很大程度上簡化了MFC中的許多操作,使得MFC在做字符串操作的時候方便了很多。不管怎樣,使用CString有很多特殊的技巧,特別是對于純C背景下走出來的程序員來說有點難以學習。 但是很多情況下,我們還是需要cstring和string的轉換。 分兩步: 1把cstring轉為char數組 2根據char數組,構造自己的string(記得釋放內存) ~~~ std::string CStringToSTDStr(const CString& theCStr) { const int theCStrLen = theCStr.GetLength(); char *buffer = (char*)malloc(sizeof(char)*(theCStrLen+1)); memset((void*)buffer, 0, sizeof(buffer)); WideCharToMultiByte(CP_UTF8, 0, static_cast<cstring>(theCStr).GetBuffer(), theCStrLen, buffer, sizeof(char)*(theCStrLen+1), NULL, NULL); std::string STDStr(buffer); free((void*)buffer); return STDStr; } ~~~ 而string轉cstring那就很輕松了: ~~~ string str="abcde"; CString cstr(str.c_str()); ~~~
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