const rounding = (value) => { console.log(value,'value====') if(value || value == 0) { let num = parseFloat(value).toFixed(2) //数字千位分隔符号 let str = num.toString() //没有小数点时,在末尾补上一个小数点 if(str.indexOf('.') === -1) { str += '.' } return str.replace(/(\d)(?=(\d{3})+\.)/g, '$1,').replace(/\.$/, '') }else { return '' } } export {rounding}