Streamwriter 覆盖 txt 文件中的文本

Question

有没有什么方法可以重新打开流写入器而不创建新的写入对象？因为此时，当调用 WriteOdd 时，streamwriter 正在覆盖在它之前调用的 WriteEven :/

public void WriteEven()
        {

           StreamWriter writer = new StreamWriter(FILENAME);   
           for (int i = 0; i < array.Length; i+= 2)
            {
                Console.WriteLine(array[i]);

                writer.WriteLine("EvenNumbers: " + array[i]);

            }

            writer.Close();


        }

        public void WriteOdd()
        {
            StreamWriter writer = new StreamWriter(FILENAME);
            for (int i = 1; i < array.Length; i += 2)
            {
                Console.WriteLine(array[i]);


                writer.WriteLine("OddNumbers: " + array[i]);


            }
            writer.Close();
        }   

谢谢

Answer 1

使用重载，询问您是否要附加

public StreamWriter(
    string path,
    bool append
)

http://msdn.microsoft。 com/en-us/library/36b035cb.aspx

Answer 2

您可以将流对象传递给 WriteEven() 和 WriteOdd() 方法。

public void WriteOdd(StreamWiter writer)
{
  for (int i = 1; i < array.Length; i += 2)
  ...
}