<input type="text" class="Wdate" onclick="WdatePicker({onpicking:function(dp){sayHello(this,dp);}})" readonly="readonly">
function sayHello(obj,dp){
var date=dp.cal.getNewDateStr();
var $obj=$(obj);
var name=$obj.val();
alert(‘您好：‘+name+‘今天是：‘+date)
}
原文：https://www.cnblogs.com/Alwaysbecoding/p/9020141.html