JavaScript¶ÁÈ¡TxtÎļþ
JavaScript¶ÁÈ¡TxtÎļþ
<html>
<head>
<title>new page</title>
<script>
GetHeader(src) {
var ForReading=1;
var fso=new ActiveXObject("Scripting.FileSystemObject");
var f=fso.OpenTextFile(src,ForReading);
return(f.ReadAll());
}
var arr=GetHeader("C:\\a.txt").split("\r\n");
for(var i=0;i<arr.length;i++){
alert("µÚ"+(i+1)+"ÐÐÊý¾ÝΪ:"+arr[i]);
}
</script>
</head>
<body>
</body>
</html>
Ïà¹ØÎĵµ£º
//String.prototypeʹÓÃ
//ÅúÁ¿Ìæ»»£¬±ÈÈ磺str.ReplaceAll([/a/g,/b/g,/c/g],["aaa","bbb","ccc"])
String.prototype.ReplaceAll=function (A,B) {
var C=this;
for(var i ......
javascript³õѧÕß
——È«ÃæÑ§Ï°¶ÔÏó¸ÅÄî
±¾ÎĽéÉÜÁ˼¸ºõËùÓйØÓÚ¶ÔÏóµÄ»ù±¾¸ÅÄʲôÊǶÔÏó£¬ÈçºÎ´´½¨¶ÔÏ󣬶ÔÏóµÄÊôÐÔµÄÉèÖúͶÁÈ¡£¬É¾³ýÊôÐԵķ½·¨£¬¹¹Ô캯Êý£¬¶ÔÏóÔÐÍ£¬¸¸À࣬×ÓÀ࣬¼Ì³ÐµÈµÈ¡£
1.¶ÔÏó
* ¶ÔÏóÊÇÒ»ÖÖ¸´ºÏÊý¾ÝÀàÐÍ£¬ËüÃǽ«¶à¸öÊý¾ÝÖµ¼¯ÖÐÔÚÒ»¸öµ¥ÔªÖУ¬¶øÇÒÔËÐÐʹÓÃÃû×ÖÀ´´æÈ¡ÕâЩֵ¡£½âÊ ......
ECMAScriptÓÐÎÞÓô洢µ¥ÔªÊÕ¼¯³ÌÐò£¬µ±ÔÚÔÙûÓжԶÔÏóµÄÒýÓÃʱ£¬³Æ¸Ã¶ÔÏ󱻷ϳý£¨dereference£©ÁË¡£
ÔËÐÐÎÞÓô洢µ¥ÔªÊÕ¼¯³ÌÐòʱ£¬ËùÓзϳýµÄ¶ÔÏó¶¼±»Ïú»Ù¡£
°Ñ¶ÔÏóµÄËùÓÐÒýÓö¼ÉèÖÃΪnull£¬¿ÉÒÔÇ¿ÖÆÐԵķϳý¶ÔÏó£¬ÀýÈ磺
var oObject = new Object;
.......
&n ......
ECMAScriptÖУ¬switchÓï¾ä¿ÉÒÔÓÃÓÚ×Ö·û´®£¬¶øÇÒÄÜÓò»Êdz£Á¿µÄֵ˵Ã÷Çé¿ö:
var BLUE="blue" , RED = "red" , GREEN = "green";
switch(sColor)
{
case BLUE: alert("Blue"); break;
&nb ......