如何在C＃中使用Path.Combine删除文件

本文介绍了如何在C＃中使用Path.Combine删除文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

string root = Server.MapPath("~");
                string path = "\\Brands\\" + Session["brandname"].ToString() + "\\" + Session["departmentname"].ToString() + "\\" + Seasonfolders.SelectedItem.Text + "\\" + Session["groupname"].ToString() + "\\" + item;
                string originalpath = System.IO.Path.Combine(root, path);
                bool isExists = System.IO.Directory.Exists(Server.MapPath(@"~\\" + originalpath));
                if (!isExists)
                {
                    chkstyles.Items.RemoveAt(i);
                    File.Delete(@originalpath);
                }

预期输出：

root = E ：\ sg

path = \ Brands\a\b\c

originalpath = E\sg\\\\\\\ \\ b

但是产生了C\\\\\\ ....没有得到当前的访问文件夹路径。但是有了这个，我在所有代码中工作，这些代码只在一个模块上工作得很好而且很忙。不知道它是如何工作的，而不是在这里工作。

Expected Output:
root=E:\sg
path=\Brands\a\b\c
originalpath=E\sg\a\b\c\d

but produced C\a\b\c .... Didn't get the current accessing folder path. But with this, I worked in all codes which worked fine but hectic at one module alone. Doesn't know how it worked there and not working here.

推荐答案

string root = Server.MapPath("~");

哪个给你E：\ sg

Which gives you "E:\sg"

string originalpath = System.IO.Path.Combine(root, path);

哪个给你 E：\ sg \\\\\\\

然后，你这样做：

Which gives you "E:\sg\a\b\c\d"
Then, you do this:

bool isExists = System.IO.Directory.Exists(Server.MapPath(@"~\\" + originalpath));

检查是否存在名为E：\ sgE：sg \\\ \\c

哪个会失败...

你为什么要尝试包括根文件夹两次？

Which is checking to see if a file exists called "E:\sgE:sg\a\b\d\c"

Which is going to fail...

Why are you trying to include the root folder twice?

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sg