本日时间
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function showToDay()
{
var Nowdate=new Date();
M=Number(Nowdate.getMonth())+1
alert(Nowdate.getMonth()+"月,"+Nowdate.getDate()+"号,星期"+Nowdate.getDay());
return Nowdate.getYear()+"-"+M+"-"+Nowdate.getDate();
}昨天
function showTomorrow()
{
var tom=new Date();
tom.setDate(tom.getDate()+1);
M=Number(tom.getMonth())+1
return tom.getYear()+"-"+M+"-"+tom.getDate();
}本周第一天
function showWeekFirstDay()
{
var Nowdate=new Date();
var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);
M=Number(WeekFirstDay.getMonth())+1
return WeekFirstDay.getYear()+"-"+M+"-"+WeekFirstDay.getDate();
}本周最后天
function showWeekLastDay()
{
var Nowdate=new Date();
var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);
var WeekLastDay=new Date((WeekFirstDay/1000+6*86400)*1000);
M=Number(WeekLastDay.getMonth())+1
return WeekLastDay.getYear()+"-"+M+"-"+WeekLastDay.getDate();
}本月第一天
function showMonthFirstDay()
{
var Nowdate=new Date();
var MonthFirstDay=new Date(Nowdate.getYear(),Nowdate.getMonth(),1);
M=Number(MonthFirstDay.getMonth())+1
return MonthFirstDay.getYear()+"-"+M+"-"+MonthFirstDay.getDate();
}本月最后一天
function showMonthLastDay()
{
var Nowdate=new Date();
var MonthNextFirstDay=new Date(Nowdate.getYear(),Nowdate.getMonth()+1,1);
var MonthLastDay=new Date(MonthNextFirstDay-86400000);
M=Number(MonthLastDay.getMonth())+1
return MonthLastDay.getYear()+"-"+M+"-"+MonthLastDay.getDate();
}
function getTime(s)
{
var time1=document.getElementById("num1");
var time2=document.getElementById("num2");
if(s==1){
//本日时间
time1.value=showToDay();
//alert("今日:"+time1.value);
time2.value=showTomorrow();
//alert("今日:"+time2.value);
}else if(s==2){
//本周时间
time1.value=showWeekFirstDay();
//alert("本月第一天:"+time1.value);
time2.value=showWeekLastDay();
//alert("本月最后一天:"+time2.value);
}else{
//本月时间
time1.value=showMonthFirstDay();
//alert("本月第一天"+time1.value);
time2.value=showMonthLastDay();
//alert("本月最后一天"+time2.value);
}
}
其他网友补充的完整测试代码
Document
这样基本上就解决问题了