QT方面的开发

				#include 				using namespace std;								class Snafu {				public:				    Snafu(int x) : mData(x) {}				    void showSum(Snafu & other) const {				        cout 				    }				  				private:				    int mData;				};								void foo(const Snafu & myObject1,				         const Snafu & myObject2) {				    // [ . . . ]  				    myObject1.showSum(myObject2);				}								int main() {								    Snafu myObject1(12345);				    Snafu myObject2(54321);								    foo(myObject1, myObject2);								}