两个日期类型相减

//在公司中用到根据长时间类型请假的情况，根据时间的开始日期好结束日期来批量生成时间段的请假单；
//-------------日期信息---------------------
wisdom.dateDiff = function(strInterval, dtStart, dtEnd)
{
if (typeof dtEnd == 'string' )//如果是字符串转换为日期型
{
dtEnd = wisdom.stringToDate(dtEnd);
}
if(typeof dtStart == 'string')
{
dtStart = wisdom.stringToDate(dtStart);
}
switch (strInterval) {
case 's' :return parseInt((dtEnd - dtStart) / 1000);
case 'n' :return parseInt((dtEnd - dtStart) / 60000);
case 'h' :return parseInt((dtEnd - dtStart) / 3600000);
case 'd' :return parseInt((dtEnd - dtStart) / 86400000);
case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7));
case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);
case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();
}
}
wisdom.stringToDate = function(DateStr, format) {
if (DateStr instanceof Date) {
return DateStr;
}
var converted = Date.parse(DateStr);
var myDate = new Date(converted);
if (isNaN(myDate)) {
if (DateStr.indexOf(':') > 0 || (!wisdom.isEmpty(format) && format.toLowerCase().indexOf("h") > -1)) {
var two = DateStr.split(' ');
if (two.length != 2) {
two = DateStr.split('T');
}
var nowDate = new Date();
if (two.length == 1) {
var tempValue = new Array();
tempValue.push(nowDate.toString("yyyy-MM-dd"));
tempValue.push(two[0]);
two = tempValue;
}
if (two.length != 2) {
return nowDate;
}
var d = two[0].split('-');
var t = two[1].replace("Z", "").split(':');
if (t.length == 3) {
myDate = new Date(d[0], --d[1], d[2], t[0], t[1], t[2]);
}
else if (t.length == 2) {
myDate = new Date(d[0], --d[1], d[2], t[0], t[1], "00");
}
else if (t.length == 1) {
myDate = new Date(d[0], --d[1], d[2], t[0], "00", "00");
}
else if (t.length == 1) {
myDate = new Date(d[0], --d[1], d[2], "00", "00", "00");
}
}
else {
var arys = DateStr.split('-');
switch (arys.length) {
case 1:
//导致月份无法选，先注释掉
// var reg = /^([1-9]\d*)$/; //校验是否为正整数
// if (!reg.test(arys[0])) {
// return null;
// }
if (!wisdom.isEmpty(format)) {
var dn = new Date();
if (format.indexOf("y") > -1) {
myDate = new Date(arys[0], 0, "01");
} else if (format.indexOf("M") > -1) {
myDate = new Date(dn.getYear(), --arys[0], "01");
} else if (format.toLowerCase().indexOf("h") > -1) {
myDate = new Date(dn.getYear(), dn.getMonth(), dn.getDate(), arys[0], "00", "00");
} else if (format.indexOf("m") > -1) {
myDate = new Date(dn.getYear(), dn.getMonth(), dn.getDate(), "00", arys[0], "00");
} else if (format.toLowerCase().indexOf("s") > -1) {
myDate = new Date(dn.getYear(), dn.getMonth(), dn.getDate(), "00", "00", arys[0]);
}
}
break;
case 2:
if (utils.CheckIsDate(DateStr + "-01")) {
myDate = new Date(arys[0], --arys[1], "01");
}
else {
return null;
}
break;
default:
if (utils.CheckIsDate(DateStr)) {
myDate = new Date(arys[0], --arys[1], arys[2]);
}
else {
return null;
}
break;
}
// myDate = new Date(arys[0], --arys[1], arys[2]);
}
}
return myDate;
}
leavetye请假类型的code值；leavename请假类型的中文名称，starttime请假开始时间，endtime请假结束时间
function LongLeaveTypeAdd(leavetype,leavename,starttime,endtime)
{
var entity = <%=wgLeave.StrClientOprDetailName %>;
var detaillst=<%= WgLeaveDetailDet.StrClientOprEntityList %>;
var objlst=detaillst;
//算出开始日期与结束日期中间差的天数；
var leaveday=wisdom.dateDiff('d',starttime,endtime);
if(leaveday!=null&&leaveday>0)
{
for(var i=0;i<leaveday;i++)
{
var d1=wisdom.stringToDate(starttime);
var d2 = d1;
d2.setDate(d1.getDate()+(i+1));//相差天数累加获得当前天数
var ojb=new Object();
ojb.leaveAppType_cnName=leavename;
ojb.leaveAppType=leavetype;
ojb.appStartDate=d2;
ojb.appStartLabel_cnName="全天";
ojb.appStartLabel="03";
objlst.push(ojb);
}
}
<%=WgLeaveDetailDet.StrClientRebindData %>(objArrClone(objlst));//重绑grid
}本文出自 “zhangjingjing” 博客，请务必保留此出处http://zhjjzhjj.blog.51cto.com/1802676/1001612