<script>
var s = "http://192.168.0.2/img/pl.gif";
var s2 = s.substring(s.lastIndexOf("/")+1);
alert(s2);
var s3 = s.replace(/^.*\/([^/]+)$/,"$1");
alert(s3);
</script>
var s = "http://192.168.0.2/img/pl.gif";
var s2 = s.substring(s.lastIndexOf("/")+1);
alert(s2);
var s3 = s.replace(/^.*\/([^/]+)$/,"$1");
alert(s3);
</script>
str1 = str2.replace(match_string,replace_string) ; var str3="http://192.168.0.2/img/pl.gif"
str4 = str3.substring(str3.indexof("img")+3,str3.length-1) ;
这时str4="pl.gif"
1、先从右面查询"/"的位置
2、从右面截取pl.gif字符串var str="http://192.168.0.2/img/pl.gif";
var strLeng=str.length;
var thePlace=str.lastIndexOf("/");
var theString=str.substring(thePlace,strLeng-thePlace);theString就是你想要的字符串