Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JavaScriptÔËÐдúÂë¿ò´úÂë


JavaScriptÔËÐдúÂë¿ò´úÂë
<script language="JavaScript" type="text/JavaScript">
//ÔËÐÐÎı¾Óò´úÂë
function runEx(cod1) {
cod=document.all(cod1)
var code=cod.value;
if (code!=""){
var newwin=window.open(’’,’’,’’); //´ò¿ªÒ»¸ö´°¿Ú²¢¸³¸ø±äÁ¿newwin¡£
newwin.opener = null // ·ÀÖ¹´úÂë¶ÔÂÛÌ¸Ò³ÃæÐÞ¸Ä
newwin.document.write(code); //ÏòÕâ¸ö´ò¿ªµÄ´°¿ÚÖÐдÈë´úÂëcode£¬ÕâÑù¾ÍʵÏÖÁËÔËÐдúÂ빦ÄÜ¡£
newwin.document.close();
}
}
</script>
<textarea name="textarea" cols="60" rows="10" id="rn01">Ìí¼ÓHTML´úÂë</textarea>
<br />
<INPUT onclick="runEx(’rn01’)" type="button" value="ÔËÐдúÂë" style="cursor:hand"> 
 [Ctrl+A È«²¿Ñ¡Ôñ Ìáʾ£ºÄã¿ÉÏÈÐ޸IJ¿·Ö´úÂ룬ÔÙ°´ÔËÐÐ]


Ïà¹ØÎĵµ£º

CSSºÍJavascriptÖеÄstyle.displayÓëstyle.visibility

¡¡´ó¶àÊýÈ˺ÜÈÝÒ×½«CSSÊôÐÔdisplayºÍvisibility»ìÏý£¬ËüÃÇ¿´ËÆÃ»ÓÐʲô²»Í¬£¬ÆäʵËüÃǵIJî±ðÈ´ÊǺܴóµÄ¡£
¡¡¡¡visibilityÊôÐÔÓÃÀ´È·¶¨ÔªËØÊÇÏÔʾ»¹ÊÇÒþ²Ø£¬ÕâÓÃvisibility="visible|hidden"À´±íʾ£¬visible±íʾÏÔʾ£¬hidden±íʾÒþ²Ø¡£µ±visibility±»ÉèÖÃΪ"hidden"µÄʱºò£¬ÔªËØËäÈ»±»Òþ²ØÁË£¬µ«ËüÈÔȻռ¾ÝËüÔ­À´ËùÔÚµÄλÖà ......

javascript µÄ±Õ°ü

±Õ°ü£¨closure£©ÊÇJavascriptÓïÑÔµÄÒ»¸öÄѵ㣬ҲÊÇËüµÄÌØÉ«£¬ºÜ¶à¸ß¼¶Ó¦Óö¼ÒªÒÀ¿¿±Õ°üʵÏÖ¡£
ÏÂÃæ¾ÍÊÇÎÒµÄѧϰ±Ê¼Ç£¬¶ÔÓÚJavascript³õѧÕßÓ¦¸ÃÊǺÜÓÐÓõġ£
Ò»¡¢±äÁ¿µÄ×÷ÓÃÓò
ÒªÀí½â±Õ°ü£¬Ê×ÏȱØÐëÀí½âJavascriptÌØÊâµÄ±äÁ¿×÷ÓÃÓò¡£
±äÁ¿µÄ×÷ÓÃÓòÎ޷ǾÍÊÇÁ½ÖÖ£ºÈ«¾Ö±äÁ¿ºÍ¾Ö²¿±äÁ¿¡£
JavascriptÓïÑÔµÄÌØÊâÖ®´¦£¬¾ÍÔÚÓ ......

Javascript»ñµÃ¶ÔÏó¡¢ÊôÐÔ³£ÓÃÓï¾ä

1.»ñµÃÖ¸¶¨idµÄ¶ÔÏó£ºdocument.getElementById ("id")£¬idÐèΨһ£¬name²»±ØÎ¨Ò»¡£
2.»ñµÃÖ¸¶¨nameµÄ¶ÔÏóÊý×飺document.getElementsByname("name")£¬·ÃÎʾßÌå¶ÔÏóÓÃϱê±íʾ£ºdocument.getElementsByname("name")[0]
3. »ñµÃ´¥·¢Ê¼þµÄ¶ÔÏó£º
function getEventElement(ev){
ev = ev||window.event;//»ñµÃ¶ÔÏó
......

javascript »ñÈ¡¹ö¶¯Ìõ¸ß¶È+³£ÓÃjsÒ³Ãæ¿í¶ÈÓë¸ß¶È

/********************
 * È¡´°¿Ú¹ö¶¯Ìõ¸ß¶È
 ******************/
function getScrollTop()
{
    var scrollTop=0;
    if(document.documentElement&&document.documentElement.scrollTop)
    {
        ......

JavaScript(JS)³£ÓõÄÕýÔò±í´ïʽ

Ö»ÄÜÊäÈëÊý×Ö£º"^[0-9]*$"
Ö»ÄÜÊäÈë n λµÄÊý×Ö£º"^\d{n}$"
Ö»ÄÜÊäÈëÖÁÉÙ n λµÄÊý×Ö£º"^\d{n,}$"
Ö»ÄÜÊäÈë m ¡« n λµÄÊý×Ö£º"^\d{m,n}$"
Ö»ÄÜÊäÈëÁãºÍ·ÇÁ㿪ͷµÄÊý×Ö£º"^(0|[1-9][0-9]*)$"
Ö»ÄÜÊäÈëÓÐÁ½Î»Ð¡ÊýµÄÕýʵÊý£º"^[0-9]+(.[0-9]{2})?$"
Ö»ÄÜÊ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ