JSFiddle - React, Tailwind, and code Playground

JavaScript

var number=0.07 
var fixNum = new Number(number + 1).toFixed(1);//四舍五入之前加1  
var fixedNum = new Number(fixNum - 1).toFixed(1);//四舍五入之后减1，再四舍五入一下  
console.log(fixedNum);