2_22.cpp

来自「c++案例教程源代码」· C++ 代码 · 共 12 行

#include <iostream>
using namespace std;
int main()
{	int n;
	cout << "Enter an integer: ";  cin >> n;
	if (n = 20)
     cout << n << " = 20" << endl;  	//语句1：使用的是赋值运算符
	else
     cout << n << " != 20" << endl;
	return 0;
}