C与C++ 无参函数的区别解析

int fun1();

int main()
{
 int a = fun1(3, 4);
 printf("%d\n", a);
 return 0;
}

int fun1(int a, int b)
{
 return a + b;
}

int fun1();

int main()
{
 int a = fun1(3, 4);
 cout << a << endl;

 return 0;
}

int fun1(int a, int b)
{
 return a + b;
}