1、安装big.js
npm install --save big.js
2、页面上引用big.js
const Big = require('big.js')
3、常用操作
加法plus
0.1+0.2
x=Big(0.1) // '0.1'
y=x.plus(0.2) // '0.3'
Big(0.7).plus(x).plus(y) // '1.1'
减法minus
0.3-0.1 //0.199999999998
x = Big(0.3)
x.minus(0.1) // '0.2'
x // '0.3'
乘法times
0.6*3 // '1.79999999998'
x = Big(0.6)
y = x.times(3) // '1.8'
除法div
x = Big(2);
y = Big(3);
z = x.div(y); // '0.6666667'
绝对值abs
x = Big(-0.8);
x.abs() //'0.8'
模运算mod
1%0.9 // '0.9999999998'
x = Big(1)
x.mod(0.9) // '0.1'
保留两位小数toFixed
Big(12).toFixed(2) //12.00