网站开发建设付款方式/营销策略有哪些方法
let str = '0123456789'
let emp = str.slice(0,5)
consle.log(emp) //'01234'//数字的
var num = 0123456
num.toString().slice(0,5)
let str = '0123456789'
let emp = str.slice(0,5)
consle.log(emp) //'01234'//数字的
var num = 0123456
num.toString().slice(0,5)