标签：asc 常见 算数运算 ber es6 算法 number pre java
一、添加临时变量（最常见）
var a = 1,
b = 2,
c;
c = a;
a = b;
b = c;
二、算数运算（仅限number类型）
var a = 3,
b = 5;
a = a - b; // a = -2 , b = 5;
b = a + b; // a = -2, b = 3;
a = b - a; // a = 5, b = 3;
三、数组特性
var a = 1;
b = 2;
a = [ a , b ];
b = a[ 0 ];
a = a[ 1 ];
四、ES6解构
let a = 3,
b = 7;
[ a , b ] = [ b , a ];
标签：asc 常见 算数运算 ber es6 算法 number pre java
原文地址：https://www.cnblogs.com/lmyxywy/p/10988974.html
