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 <script language="javascript">
function   isdate(){  
        var   strSeparator   =   "/";   //ÈÕÆÚ·Ö¸ô·û  
        var   strDateArray;  
        var   intYear;  
        var   intMonth;  
        var   intDay;  
        var   boolLeapYear;  
        var strDate=form1.a.value   //±íµ¥ÖеÄÈÕÆÚÖµ
        strDateArray   =   strDate.split(strSeparator);  
         
        if(strDateArray.length!=3)    {   alert('ÈÕÆÚ¸ñʽ´íÎó'); return   false;   }
         
        intYear   =   parseInt(strDateArray[0],10);  
        intMonth   =   parseInt(strDateArray[1],10);  
        intDay   =   parseInt(strDateArray[2],10);  
         
        if(isNaN(intYear)||isNaN(intMonth)||isNaN(intDay))   {   alert('ÈÕÆÚ¸ñʽ´íÎó'); return   false;   }
         
        if(intMonth>12||intMonth<1)    {   alert('ÈÕÆÚ¸ñʽ´íÎó'); return   false;   } 
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this.Response.Write("<script language=javascript>window.close();");
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this.Response.Write("");
this.Response.Write("{top.opener =null;top.close();}");
this.Response.Write("");
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var a = [1,2,3,4,5];
var b = a.shift(); //a£º[2,3,4,5]  b£º1
unshift£º½«²ÎÊýÌí¼Óµ½Ô­Êý×鿪ͷ£¬²¢·µ»ØÊý×éµÄ³¤¶È
var a = [1,2,3,4,5];
var b = a.unshift(-2,-1); //a£º[-2,-1,1,2,3,4,5]  b£º7
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