function formDate(dateForm) {
if (dateForm === "") { //解决deteForm为空传1970-01-01 00:00:00
return "";
} else {
var dateee = new Date(dateForm ).toJSON();
var date = new Date(+new Date(dateee)+ 8 * 3600 * 1000).toISOString().replace(/T/g,' ').replace(/\.[\d]{3}Z/,'');
return date;
}
}