<script language="javascript">
var date1 = "2004-2-28";
var date2 = "2004-2-29";
alert(StringToDate(date1) > StringToDate(date2));
alert(StringToDate(date1) < StringToDate(date2));
alert(StringToDate(date1) == StringToDate(date2));function StringToDate(Str)
{
return new Date(Str.replace(/-/,"/"));
}</script>
var date1 = "2004-2-28";
var date2 = "2004-2-29";
alert(StringToDate(date1) > StringToDate(date2));
alert(StringToDate(date1) < StringToDate(date2));
alert(StringToDate(date1) == StringToDate(date2));function StringToDate(Str)
{
return new Date(Str.replace(/-/,"/"));
}</script>
function StringToDate(Str)
{
return new Date(Str.replace(/-/,"/"));
}
也放到<script></script>中去,要不然就会出现"缺少对象"的错误.
现在的这个函数只能识别YYYY-MM-DD格式的日期和YYYY/MM/DD格式的日期
var date1 = "2004-2-28";
var date2 = "2004-2-29";
date1=date1.replace(/-/g,"")-0; //转成数字.
date2=date2.replace(/-/g,"")-0; //转成数字.
if(date1-date2>0)alert('date1大于date2')
if(date1-date2<0)alert('date1小于date2')
if(date1-date2==0)alert('date1等于date2')
</script>
名称:DateCompare
功能:计算两个字符(YYYY-MM-DD)日期相隔天数
判断一个日期是否在另一个指定日期之后和之前
参数:asStartDate,起始日期
asEndDate,终止日期
返回:相隔天数的字符串
*****************************************************************/
function DateCompare(asStartDate,asEndDate){
var miStart=Date.parse(asStartDate.replace(/\-/g,'/'));
var miEnd=Date.parse(asEndDate.replace(/\-/g,'/'));
return (miEnd-miStart)/(1000*24*3600);
}
<script>
var date1 = "2004-2-28";
var date2 = "2004-2-29";
date1=date1.replace(/-/g,"")-0; //转成数字.
date2=date2.replace(/-/g,"")-0; //转成数字.
if(date1-date2>0)alert('date1大于date2')
if(date1-date2<0)alert('date1小于date2')
if(date1-date2==0)alert('date1等于date2')
</script>
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这样判断会认为2004-2-21大于2004-12-1