In C++, CString is a class provided by MFC (Microsoft Foundation Class) that encapsulates a null-terminated string of characters. It is similar to the standard C string but provides additional functionality and ease of use.
- Find: This method is used to find the first occurrence of a substring within the CString object. It takes the substring to search as a parameter and returns the zero-based index of the first occurrence if found, or -1 if not found. The method signature is:
int Find(LPCTSTR lpszSub);
- ReverseFind: This method is used to find the last occurrence of a substring within the CString object. It takes the substring to search as a parameter and returns the zero-based index of the last occurrence if found, or -1 if not found. The method signature is:
int ReverseFind(LPCTSTR lpszSub);
- Left: This method is used to extract a specified number of characters from the left side of the CString object. It takes the number of characters to extract as a parameter and returns a new CString object containing the extracted characters. The original CString object remains unchanged. The method signature is:
CString Left(int nCount) const;
- Right: This method is used to extract a specified number of characters from the right side of the CString object. It takes the number of characters to extract as a parameter and returns a new CString object containing the extracted characters. The original CString object remains unchanged. The method signature is:
CString Right(int nCount) const;
These methods provide useful string manipulation functionality in C++ using the CString class.
亿速云「云服务器」，即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘，价格低至29元/月。点击查看>>