设置日期为yyyy-MM-dd,代码如下：

function setDefaultDate() {var mydate = new Date();var month = myDate.getMonth() + 1;var day = myDate.getDate();month = (month.toString().length == 1) ? ("0" + month) : month;day = (day.toString().length == 1) ? ("0" + day) : day;var result = myDate.getFullYear() + '-' + month + '-' + day; //当前日期return result;}

转载自 https://blog.csdn.net/baidu_37107022/article/details/78450127