追加拋出異常

Question

我試圖用下面的代碼創建一個固定的長度（左對齊）批處理文件。

當我使用追加它的拋出異常「是一種方法，但使用像一個類型」。

  string batFilePath = @"c:\mockforbat.bat"; 
     if (!File.Exists(batFilePath)) 
     { 
      using (FileStream fs = File.Create(batFilePath)) 
      { 
       fs.Close(); 
      } 
     } 

     //write 
     using (StreamWriter sw = new File.AppendText(batFilePath)) 
     { 
      string a = String.Format("{0,-24}{1,-5}{2,5}", "CostCenter", "CostObject", "ActivityType"); 
      sw.WriteLine(@a); 

     } 
     Process process = Process.Start(batFilePath); 
     process.WaitForExit(); 

請有人糾正我在這裏做錯了什麼？

Answer 1

從該行

using (StreamWriter sw = new File.AppendText(batFilePath)) 

刪除該new運營商應該讀

using (StreamWriter sw = File.AppendText(batFilePath)) 

Answer 2

string batFilePath = @"c:\mockforbat.bat"; 
using(var fs = new FileStream(batFilePath , FileMode.OpenOrCreate, FileAccess.Write)) 
{ 
    using(var sw = new StreamWriter(fs)) 
    { 
     string a = String.Format("{0,-24}{1,-5}{2,5}", "CostCenter", "CostObject", "ActivityType"); 
     sw.WriteLine(a); 
    } 
}