如何在C＃中使用Path.Combine删​​除文件 [英] How to work with Path.Combine in C# to delete a file

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

唔不...它不会起作用。

看看你正在做什么：

Well no...it's not going to work.
Look at what you are doing:

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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