这个为什么会发出警告呢,我看不出问题?
struct Point{ int a; int b; Point(int c=1) { a=c; b=c; } Point() { a=100; b=123; } Point(int x,int y) { a=x; b=y; } void Output() { cout<<a<<endl<<b<<endl; } void Output(int x,int y) { a=x; b=y; cout<<a<<endl<<b<<endl; } ~Point() { cout<<"删除该类..."<<endl; }};