申論題

In C++, the c_str() member function of the std::string class returns a pointer to a null-terminated character array with data equivalent to that held by the string. Specifically, it returns a const char* type. This pointer points to the internal array managed by the string object and can be used to interface with C-style strings or functions that require a C-style string (null-terminated character array). The data it points to includes all the characters in the string followed by a null character (\0) at the end to mark the end of the array.在C++中，

在C++中，std::string類的c_str()成員函數返回一個指向以空字元終止的字元數組的指針，該數組的數據與字串持有的數據相當。具體來說，它返回一個const char*類型的指針。這個指針指向由字串對象管理的內部數組，可用於與C風格的字串或需要C風格字串（以空字元終止的字元數組）的函數進行介面。它指向的數據包括字串中的所有字元，以及數組末尾的一個空字元（\0），以標記數組的結束。