C++的运算符你真的了解吗

目录

前言

运算符的作用：用于执行代码的运算

主要有：

1 算术运算符

用于处理四则运算

对于前置递增：将递增运算前置，使变量先加一，再进行表达式运算。

对于后置递增：将递增运算后置，使变量先进行表达式运算，再加一。

#include<iostream>using namespace std;int main(){//1.前置递增：先加一，再进行表达式运算int a = 10;int b = ++a * 10;cout << "a = " << a << endl;cout << "b = " << b << endl;//2.后置递增：先进行表达式运算，再加一int c = 10;int d = c++ * 1相约中国梦0;cout << "c = " << c << endl;cout << "d = " << d << endl;system("pau");return 0;}

2 赋值运算符

#include<iostream>using namespace std;int main1(){//赋值运算符int a = 10;int b = 2;cout << "a = " << a << endl;//+=a = 10;a += b;cout << "a = " << a << endl;//-=a = 10;a -= b;cout << "a = " << a << endl孙子涵资料;//*=a = 10;a *= b;cout << "a = " << a << endl;// /=a = 10;a /= b;cout << "a = " << a << endl;// %=a = 10;a %= b;cout << "a = " << a << endl;system("pau");return 0;}

3 比较运算符

#include<iostream>using namespace std;int main(){cout << (4 == 3) << endl;cout << (4 != 3) << endl;cout << (4 < 3) << endl;cout << (4 > 3) << endl;cout << (4 >= 3) << endl;cout << (4 <= 3) << endl;system("pau");return 0;}

4 逻辑运算符

#include<iostream>using namespace std;int main(){int a = 5;// 逻辑运算符 且君尝为晋君赐矣非cout << !a << endl;cout << !!a << endl;// 逻辑运算符 与int b = 0;int c = 3;cout << (a &&什么语什么香amp; b) << endl;cout << (a && c) << endl;//逻辑运算符  或cout << 上大学的十个理由(!a || b) << endl;cout << (a || c) << endl;system("pau");return 0;}#include<iostream>using namespace std;int main(){int a = 5;// 逻辑运算符 非cout << !a << endl;cout << !!a << endl;// 逻辑运算符 与int b = 0;int c = 3;cout << (a && b) << endl;cout << (a && c) << endl;//逻辑运算符  或cout << (!a || b) << endl;cout << (a || c) << endl;system("pau");return 0;}

总结

本篇文章就到这里了，希望能够给你带来帮助，也希望您能够多多关注www.887551.com的更多内容!