1、属性初始化设置

 $('#beginDate').datetimepicker({
format: 'yyyy-mm-dd',
language: 'zh-CN',
weekStart: 1,
todayBtn: false,
autoclose: true,
todayHighlight: 1,
startView: 2,
minView: 2,
forceParse: 0,
startDate:new Date()
});


2、通过function函数计算日期之后赋值

 $('#beginDate').datetimepicker({
format: 'yyyy-mm-dd',
language: 'zh-CN',
weekStart: 1,
todayBtn: false,
autoclose: true,
todayHighlight: 1,
startView: 2,
minView: 2,
forceParse: 0,
startDate:getDay(4,'-')
});

//正数为后一天,负数为前一天,str为日期间隔符,例如 -,/
function getDay(num, str) {
var today = new Date();
var nowTime = today.getTime();
var ms = 24 * 3600 * 1000 * num;
today.setTime(parseInt(nowTime + ms));
var oYear = today.getFullYear();
var oMoth = (today.getMonth() + 1).toString();
if (oMoth.length <= 1)
oMoth = '0' + oMoth;
var oDay = today.getDate().toString();
if (oDay.length <= 1)
oDay = '0' + oDay;
return oYear + str + oMoth + str + oDay;
}