问题
I am trying to convert CString to int and float but unable to find any C++ library function to get this done. please help.
回答1:
The proper UNICODE-compliant way of doing it in MFC is the following:
CString sInt = _T("10");
int n = _ttoi(sInt);
CString sFloat = _T("10.1");
float f = _ttof(sFloat);
As David Heffernan mentioned: If your project configuration is UNICODE only and you don't use MBCS and do not have any plans to target old MS OSs like Window 98 you can use:
CStringW s = L"10";
int i = _wtoi(s);
In C++11 you can use the following:
std::string sInt = "10";
int i = std::stoi(sInt);
std::string sFloat = "10.1";
double d = std::stod(sFloat);
来源：https://stackoverflow.com/questions/34222360/how-to-convert-cstring-to-integer-and-float