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javascript ÈÕÆÚʱ¼ä¿Ø¼þ

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Calendar.js£¨×¢£ºÔÚ.net»·¾³ÏÂ.jsÎļþÐè´æÎªutf-8¸ñʽ£©
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 *ʹÓ÷½·¨£º
 * (1)ֻѡÔñÈÕÆÚ   <input type="text" name="date"   readOnly onClick="setDay(this);">
 * (2)Ñ¡ÔñÈÕÆÚºÍСʱ  <input type="text" name="dateh"  readOnly onClick="setDayH(this);">
 * (3)Ñ¡ÔñÈÕÆÚºÍСʱ¼°·ÖÖÓ <input type="text" name="datehm" readOnly onClick="setDayHM(this);">
 *ÉèÖòÎÊýµÄ·½·¨
 * (1)ÉèÖÃÈÕÆÚ·Ö¸ô·û    setDateSplit(strSplit);ĬÈÏΪ"-"
 * (2)ÉèÖÃÈÕÆÚÓëʱ¼äÖ®¼äµÄ·Ö¸ô·û  setDateTimeSplit(strSplit);ĬÈÏΪ" "
 * (3)ÉèÖÃʱ¼ä·Ö¸ô·û    setTimeSplit(strSplit);ĬÈÏΪ":"
 * (4)ÉèÖÃ(1),(2),(3)Öеķָô·û  setSplit ......

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function limitLength(obj, length) {
var desc = obj.value;
obj.value = substr(obj.value,length);
}
function substr(str,length){
var l=0,i=0;
while(l <length && i<str.length){
l+=1;
if(str.substring(i,i+1).match(/[\u4e00-\u9fa5]/))l+=2;//Ò»¸öÖÐÎÄÊÇÏ൱ÓÚ3¸öÓ¢ÎÄ
i+=1;
}
return str.substring(0,i);
}
// --></mce:script>
<textarea name="blogdesc" cols="50" rows="5" onkeyup="limitLength(this,200)">»Ð»Ðã±ã±»Ð»Ðã±ã±»Ð»Ðã±ã±ºÍ
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¡¡¡¡2.´®¶ÔÏóµÄ·½·¨
¡¡¡¡JavaScriptÌṩÁ˶à¸ö´®·½·¨ÒÔ°ïÖú¿ØÖÆÏÔʾÐÅÏ¢¡£´®·½·¨¿ÉÒÔ·ÖΪ¼¸¸ö´óÀ࣬ÈçÊôÐÔ·½·¨¡¢µ¼º½·½·¨µÈµÈ¡£ÏÂÃæÎÒÃǽ«·ÖÀà½éÉÜ¡£
¡¡¡¡(1)ÊôÐÔ·½·¨ ´®µÄÊôÐÔ·½·¨Ö¸¶¨ÁËÆÕͨÎı¾ÏÔʾÔÚÆÁÄ»Éϵķ½Ê½¡£ËüÌṩÁËÒ»ÖÖÀíÏëµÄ·½Ê½Ê¹Ö÷Ò³±äµÃ¸üÓÐÎüÒýÁ¦¡£
¡¡¡¡blink() blink()·½·¨ÒýÆðÎı¾ÉÁ˸£¬Óï·¨ÐÎʽÈçÏÂ: string.blink();
¡¡¡¡bold() bold()·½·¨Ê¹´®±äΪ´ÖÌå¡£Óï·¨ÐÎʽÈçÏÂ: string.bold();
¡¡¡¡fontcolor() fontcolor()·½·¨¿ÉÒԸı䵥¸ö´®µÄÑÕÉ«£¬»òÕßÔÚÿ´ÎÖØÐÂ×°ÈëÒ³Ãæ»òʼþ·¢Éúʱ£¬¸Ä±äÑÕÉ«¡ ......

javascriptÖеÄeval

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2009-02-27 14:58
2008-04-12 00:29
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eval¿ÉÒÔ½«×Ö·û´®Éú³ÉÓï¾äÖ´ÐУ¬ºÍSQLµÄexec()ÀàËÆ¡£
    evalµÄʹÓó¡ºÏÊÇÊ²Ã´ÄØ£¿ÓÐʱºòÎÒÃÇÔ¤ÏȲ»ÖªµÀÒªÖ´ÐÐʲôÓï¾ä£¬Ö»Óе±Ìõ¼þºÍ²ÎÊý¸øÊ±²ÅÖªµÀÖ´ÐÐʲôÓï¾ä£¬Õâʱºòeval¾ÍÅÉÉÏÓó¡ÁË¡£¾Ù¸öÀý×Ó£º
     ÎÒÃÇÒª×öÒ»¸öfunction()£¬¹¦ÄÜÊÇÊäÈëÍøÒ³ÖÐÁ½¸ö¸ö¶ÔÏóµÄÃû³Æ£¬È»ºó³ÌÐò¾Í½«ÕâÁ½¸ö¶ÔÏóµÄÖµÁª½ÓÆðÀ´Êä³ö¡£
function output(a,b)
{
   var tmpa,tmpb;
   tmpa=document.all.a.value;
   tmpb=document.all.b.value;
   document.write(tmpa+tmpb);
}
output('input1','input2');
       ÕâÑùÄãÖ´ÐеÄʱºò¾Í»áÌáʾ´íÎó“document.all.a²»ÊǶÔÏó”ÒÔ¼°“document.all.b²»ÊǶÔÏó”¡£Ô­À´javascript°ÑaºÍbµ±³É¶ÔÏóÃû³ÆÁË£¬ÔõÑùÄÜÈÃjavascript°ÑaÀïÃæµÄÖµ×÷Ϊ¶ÔÏóÃû³ÆÄØ£¿Õâʱºò¾ÍÒªÓÃevalÁË£¬°Ñ´úÂë¸Ä³ÉÕâÑù£º
function output(a,b)
{
var tmpa,tmpb;
tmpa=eval("document.all."+a+".value");
tmpb=eval("document ......

javascriptµ÷Óø¸´°¿Ú£¨¸¸Ò³Ã棩µÄ·½·¨

 
window.parentÓëwindow.openerµÄÇø±ð javascriptµ÷ÓÃÖ÷´°¿Ú·½·¨
1£º   window.parent ÊÇiframeÒ³Ãæµ÷Óø¸Ò³Ãæ¶ÔÏó
¾ÙÀý:
a.html
Html´úÂë <html>  
    <head><title>¸¸Ò³Ãæ</title></head>  
<body>  
    <form name="form1" id="form1">  
         <input type="text" name="username" id="username"/>  
    </form>  
    <iframe src="b.html" width=100%></iframe>  
</body>  
</html> 
Èç¹ûÎÒÃÇÐèÒªÔÚb.htmÖÐÒª¶Ôa.htmÖеÄusernameÎı¾¿ò¸³Öµ£¬¾ÍÈçºÜ¶àÉÏ´«¹¦ÄÜ£¬ÉÏ´«¹¦ÄÜÒ³ÔÚIfrmaeÖУ¬ÉÏ´«³É¹¦ºó°ÑÉÏ´«ºóµÄ·¾¶·ÅÈë¸¸Ò³ÃæµÄÎı¾¿òÖÐ
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<script type="text/javascript">  
    var _parentWin = window.parent ;   
    _parentWin.fo ......

ÕÅТÏêjavascript½²×ù±Ê¼ÇËÄ

Ò»£¬È«¾Ö±äÁ¿ºÍ¾Ö²¿±äÁ¿µÄ±È½Ï
    <script type="text/javascript">
<!--
var msg = 'È«¾Ö±äÁ¿';
function show()
{
msg = '¾Ö²¿±äÁ¿'; //ÐÞ¸ÄÈ«¾Ö±äÁ¿µÄÖµ
}
show();
alert(msg); //´ËʱµÄֵΪ‘¾Ö²¿±äÁ¿’
//-->
</script> <script type="text/javascript">
<!--
var msg = 'È«¾Ö±äÁ¿';
function show()
{
var msg;
msg = '¾Ö²¿±äÁ¿'; //Ö»Ð޸ľֲ¿±äÁ¿µÄÖµ
}
show();
alert(msg); //´ËʱµÄֵΪ‘¾Ö²¿±äÁ¿’
//-->
</script>
¶þ£¬javascriptÖвÎÊý¸öÊý¿É±äµÄº¯Êý
  ÔÚº¯ÊýÄÚ²¿Ê¹ÓÃarguments¶ÔÏóÀ´·ÃÎʵ÷ÓóÌÐò´«µÝµÄËùÓвÎÊý£¬¶øÔÚº¯ÊýµÄÉùÃ÷Öк¯Êý²ÎÊýÁбíΪ¿Õ¼´¿É
  eg:
  <script type="text/javascript">
<!--
function textparams()
{
var params = '';
//ÔÚº¯ÊýÄÚ²¿Ê¹ÓÃarguments¶ÔÏóÀ´·ÃÎʵ÷ÓóÌÐò´«µÝµÄËùÓвÎÊý
for(var i=0;i<arguments.length;i++)
{
params = params + '' + arguments[i];
}
textparams('abc',123);
textparams(123,456,'abc');
}
// -->
</script> ......
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