C++编译错误，错误提示：项不会计算为接受 3 个参数的函数，项不会计算为接受 4个参数的函数

void main() { int a,b,c,d,e,f,g; cout<<"Please enter the Circle central point: "; cin>>a>>b; cout<<"Please enter the radius: "; cin>>c; Circle A(a,b,c); cout<<"The circle'