获取 windows地址栏 网页地址栏 文件名

int start=str.LastIndexOf("\");

fileName=str.SubString(start+1,str.Length-start-1);

int start=str.LastIndexOf("/");

fileName=str.SubString(start+1,str.length-start-1);

int start=str.LastIndexOf("//");

fileName=str.SubString(start+2,str.length-start-2);

Note:

1. "\" or "/" is same , because "\"=""

2.  in function " substring(first,second)" --------first+second==str.length