// 根据今天 返回 某天,比如 昨天,参数num=1 返回日期为 2020-7-8
function fff(num){
let today = new Date()
let oneDay = new Date(today)
oneDay.setDate(oneDay.getDate() - num)
let myDate = new Date( oneDay );
let result = myDate.getFullYear()+'-'+(myDate.getMonth()+1)+'-'+myDate.getDate() ;
return result
}
fff(num=1)//昨天日期
js 昨天,前天等某天日期
最新推荐文章于 2023-09-25 10:56:00 发布