参考

var datetime =new Date();//

var year = datetime.getFullYear();

var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;

var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();

alert(year + "-" + month + "-" + date);

可以format的

var b=new Date().Format("yyyy-MM-dd hh:mm:ss");

参考demo

根据值取当前时间.rar

//假设是日期控件

var date=new Date(this.getText());

const formattedDate=date.toLocaleString('zh-CN',{

year:'numeric',

month:'2-digit',

day:'2-digit',

hour:false,

minute:false,

second:flase,

hour12:false

});

var value='CONCATENATE(RIGHT(YEAR('+formattedDate+'),2),"-",FORMAT(MONTH('+formattedDate+'),"00"))';

console.log("value",value)  //屏幕打印结果