截取字符串

Question

请问从E:\xiao\backup\pubs.bak中截取E:\xiao\backup\怎样做？？

Answer 1

string str = @"E:\xiao\backup\pubs.bak";
string result = str.Substring(0, str.LastIndexOf('\'));

Answer 2

substring(0,str.lastindexof("\"))

Answer 3

System.IO.FileInfo str = new System.IO.FileInfo(@"E:\xiao\backup\pubs.bak");
        string result = str.DirectoryName;

Answer 4

FileInfo fi = new FileInfo("E:\xiao\backup\pubs.bak");
string dn = fi.DirectoryName;btw: 怎么这问题会一天出现2次呢?

Answer 5

string str = @"E:\xiao\backup\pubs.bak";
str.substring(0,str.LastIndexOf("\")+1);

Answer 6

System.IO.Path.GetDirectoryName(@"E:\xiao\backup\pubs.bak");