javascript基础--运算符

运算符

// 加法运算符
let x = 10;
let y = 20;
let z = x + y;
console.log(z); // 30

// 减法运算符
let x = 10;
let y = 20;
let z = x - y;
console.log(z); // -10

// 乘法运算符
let x = 10;
let y = 20;
let z = x * y;
console.log(z); // 200

// 除法运算符
let x = 10;
let y = 20;
let z = x / y;
console.log(z); // 0.5

// 余数运算符
let x = 10;
let y = 20;
let z = x % y;
console.log(z); // 10

// 自增运算符
let x = 10;
let y = x++;
console.log(x); // 11
console.log(y); // 10

// 自减运算符
let x = 10;
let y = x--;
console.log(x); // 9   
console.log(y); // 10

// 逗号运算符
let x = 10;
let y = 20;
let z = x + y,
    a = 30,
    b = 40;
console.log(z); // 30
console.log(a); // 30
console.log(b); // 40

// 赋值运算符
let x = 10;
let y = 20;
x = y;
console.log(x); // 20