C + + attention point

#include <iostream> using namespace std; struct foo{foo () {} foo (int) {} void Fun () {cout<< "Foo Class";}}; int main () {Foo A (10);//Use the constructor with the int parameter a.fun ();//foo b ();//Here is actually a declaration of a function B (); Foo c;//uses a parameterless constructor c.fun (); return 0; } foo B () {cout<< "DD"; return foo (10);}

You cannot add a "()" parenthesis when constructing a class object using a constructor with no parameters!!!

C + + attention point