c++ 求助函数问题
#include <iostream>
using namespace std;
int func(int a, int *b, int *c); //声明并返回int的func函数,包含整型参数a,两个指针参数b,c
int main()
{
int a = 1, b = 5, c = 9;
cout << "主程序,调用func函数前...\n";
cout << "a=" << a << "b=" << b << "c=" << c << endl;
func(a, &b, &c); //调用了func函数,将a的值,b,c的地址传递到第func函数中(14行)
cout << "主程序,调用func函数后...\n";
cout << "a=" << a << "b=" << b << "c=" << c << endl; //为什么没有输出这一行?
return 0;
}
int func(int a, int *b, int*c) //为什么后面不用加分号?
{
cout << "func函数中,计算前...\n";
cout << "a=" << a << "b=" << *b << "c=" << *c << endl;
a = a + 1;
*b = (*b)*(*b);
*c = (*c)*(*c)*(*c);
cout << "func函数中,计算后...\n";
cout << "a=" << a << "b=" << *b << "c=" << *c << endl;
system("pause");
return a;
}