C ++“and”关键字示例
“and”是一个内置关键字，至少从C++98起就存在。它是&&（逻辑AND）运算符的替代方法，它通常与条件一起使用。
如果所有操作数的结果为1，and关键字返回1；如果任何条件的结果为0，则返回0。
语法：
operand_1 and operand_2;
这里，operand_1和operand_2是操作数。
示例
Input:
a = 10;
b = 20;
result = (a==10 and b==20);
Output:
result = 1C++示例演示“and”关键字的用法
范例1：
//C ++示例演示使用
//“和”运算符。
#include <iostream>
using namespace std;
int main(){
int num = 20;
if (num >= 10 and num <= 50)
cout << "true\n";
else
cout << "false\n";
if (num >= 20 and num <= 50)
cout << "true\n";
else
cout << "false\n";
if (num > 50 and num <= 100)
cout << "true\n";
else
cout << "false\n";
return 0;
}输出：
true true false
范例2：
//输入姓名，年龄，身高和体重
//检查您是否符合
//参军与否？
#include <iostream>
using namespace std;
int main(){
string name;
int age;
float height, weight;
cout << "Enter name: ";
cin >> name;
cout << "Enter age: ";
cin >> age;
cout << "Enter height (in cm): ";
cin >> height;
cout << "Enter weight (in kg): ";
cin >> weight;
if (age >= 18 and height >= 165 and weight >= 55)
cout << name << " , you're selected.";
else
cout << name << " , you're not selected.";
return 0;
}输出：
RUN 1: Enter name: Shivang Enter age: 23 Enter height (in cm): 172 Enter weight (in kg): 67 Shivang , you're selected. RUN 2: Enter name: Akash Enter age: 19 Enter height (in cm): 157 Enter weight (in kg): 70 Akash , you're not selected.