问题一：
var str="/project/administrator/manage/images/20120917434553.jpg";
请用jquery 将此字符串变为"/project/administrator/manage/images/d20120917434553.jpg"
就是说在最后一个"/"后面加个字符
问题二：将此字符串的文件名输出，也就是说要得到的结果是"20120917434553.jpg";
多谢各位
------解决方案--------------------
- JScript code
<script language="javascript">
var str="/project/administrator/manage/images/20120917434553.jpg";
var nm1=str.lastIndexOf("/");
var str2=str.substr(0,nm1+1)+"d"+str.substr(nm1+1,str.length-nm1);
var str3=str.substr(nm1+1,str.length-nm1);
alert(str2);
alert(str3);
</script>