function a(numb) {
let numb_str =
numb.toString()
return numb_str.indexOf('.') > 0 ? numb_str.replace(/\.\d*/i,
function (xiaoshu){
return (xiaoshu.length === 2 ? xiaoshu + '0' : xiaoshu.slice(0, 3))}) : numb_str + '.00'
}
转载于:https://www.cnblogs.com/znj211985211/p/7607241.html
