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JavaScript的獲取日期代碼不足兩位數補0

function getDateWeek()

{

 var now=new Date();

 var year=now.getFullYear();//得到4位數年yyyy

 var month=now.getMonth()+1;

 var date=now.getDate();

 var weeknum=now.getDay();



 var s=year+"-"+month+"-"+date;

 document.write(s);

}

function Append_zero(obj)

{

 if(obj<10) return "0" +""+ obj;

 else return obj;

     

}



function getDateWeek()

{

 var now=new Date();

 var year=now.getFullYear();//得到4位數年yyyy

 var month=now.getMonth()+1;

 var date=now.getDate();

 var weeknum=now.getDay();



 var s=year+"-"+Append_zero(month)+"-"+Append_zero(date)+" ";

 document.write(s);

}