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js中yyyy-MM-dd格式的日期转换

云朵里的佛光 2022-02-08 阅读 71


1.转换为yyyy年MM月dd日

var str = "2021-09-13";
var reg =/(\d{4})\-(\d{2})\-(\d{2})/;
var date = str.replace(reg,"$1年$2月$3日");
alert(date);

2.转换为yyyy/MM/dd/

var str = "2021-09-13";
var reg =/(\d{4})\-(\d{2})\-(\d{2})/;
var date = str.replace(reg,"$1/$2/$3");
alert(date);

3.转换为yyyyMMdd

var str = "2021-09-13";
var reg =/(\d{4})\-(\d{2})\-(\d{2})/;
var date = str.replace(reg,"$1$2$3");
alert(date);



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