Streamwriter 覆盖 txtfile 中的文本 [英] Streamwriter overwriting the text in txtfile

问题描述

有没有办法在不创建新对象的情况下重新打开流编写器?因为目前，当 WriteOdd 被调用时，streamwriter 正在覆盖在它之前调用的 WriteEven :/

Is there some way to reopen streamwriter without it creating a new object to write to? Because at the moment, when WriteOdd is called, streamwriter is overwriting WriteEven, which is called before it :/

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

推荐答案

使用重载询问你是否要追加

Use the overload that asks you if you want to append

public StreamWriter(
    string path,
    bool append
)

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

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