Question

有没有办法在没有创建要写入的新对象的情况下重新打开streamwriter？因为此时，当调用WriteOdd时，streamwriter会覆盖之前调用的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();
        }

由于

Answer 1

使用过载询问您是否要追加

public StreamWriter(
    string path,
    bool append
)

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

Answer 2

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

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

Streamwriter覆盖txtfile中的文本

2 个答案: