# include iostream # include vector # includestringusingnamespacestd; OOLset(intx,int y ); int main () { int y_size; int x_size=3; cout 'please enter y_size: '; cin y_size; if(set(x_size,y_size ) ) { cout )两者相等n' endl; }返回0; }boolset(intx,int y ) if ) x==y )返回真; else返回假; } boll函数的pgts