qq_42869804的博客

一、函数形参的值传递与地址传递1、形参值传递 且返回值-值传递#include<iostream>using namespace std;int Return1(int a)//形参是值拷贝{ a = a + 1; cout << a << endl; cout << (int)&a << endl; return a;//返回值也是值拷贝}int main(){ int b = 4; cout <<