文件创建问题 [英] file create problem

问题描述

运行此代码时会显示以下错误：

when run this code this error is shown:

System.IO.IOException.

进程无法访问文件'C

我的代码如下：

The process cannot access the file 'C
my code is below:

func pageload(){
 string path = @"D:\\Yourfile.txt";
string givenText = "";
        if (File.Exists(path))
        {
            StreamReader sr = new StreamReader(path);
                string s = "";
                while ((s = sr.ReadLine()) != null)
                {
                    givenText = givenText + s + Environment.NewLine;
                }

                sr.Close();
                sr.Dispose();
        }
        FileStream fs1 = new FileStream(path, FileMode.OpenOrCreate, ileAccess.Write);
        StreamWriter writer = new StreamWriter(fs1);

        writer.WriteLine(givenText +"la la la ala");
        writer.Close();
        writer.Dispose();
}

推荐答案

问题是你将两种字符串形式合二为一：

The problem is that you are using both string forms in one:

string path = @"D:\ \Yourfile.txt";

用其中一个替换它可以解决你的问题：

Replacing that with one of these should cure your problem:

string path = @"D:\Yourfile.txt";

或

Or

string path = "D:\\Yourfile.txt";

但是......这是一个非常糟糕的方法！

首先要更有效地做到这一点：

But...that's a very bad way to do it!
Start by doing that more efficiently:

if (File.Exists(path)) givenText = File.ReadAllText(path);

然后在一个中使用StreamWriter 使用块



或者，用以下方法替换整个方法：

and then use the StreamWriter in a using block

Alternatively, replace the whole method with this:

private void pageload()
   {
   File.AppendAllText(@"D:\YourFile.txt", "la la la ala" + Environment.NewLine);
   }

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