在控制台应用程序中覆盖txt文件C＃中的输出

Question

if (string.IsNullOrEmpty(indata))
{
    StreamWriter sw = new StreamWriter(@"c:\arjun.txt", true);
    sw.WriteLine("0");
    sw.Close();  
}

This is my code. How can I overwrite a result in arjun.txt file I need single result.

Answer 1

The true part means "append" - either just get rid of it entirely, in which case you'll use the StreamWriter constructor overload which overwrites by defalut, or change true to false .

Or preferably, just use:

File.WriteAllLines(@"c:\argun.txt", new[] {"0"});

When you can specify all the data in one go, the convenience methods in File are really helpful.