error C2804:binary 'operator +' has too many parameters
error C2804:binary 'operator +' has too many parameters代码如下：#include <iostream> #include <string> clas...
error C2804:binary 'operator +' has too many parameters
error C2804:binary 'operator +' has too many parameters代码如下：#include <iostream> #include <string> clas...