Streamwriter删除切换文档时的一些行 [英] Streamwriter deletes some lines on switching documents

问题描述

你好，

我在控制台写了一个Prim Number Calculator我想要将prims保存在一些文本文档中。



问题是文本文件的文件大小要打开（500 mb）。

我将它们放入serval文件中，每500个prims后新的txt，



现在这里问题：程序工作和工作，在达到ammount后500，它正在创建新文件，当它发生时，它会消耗掉
2543

2549

2551

2



甚至在新文档中跳过一些，它从3581开始，所以他忽略了大约1000个可能的原始数字。



如果数字n是一个正数，则exe开始计算，如果是，则将其添加到列表中。



结束时它将它写入txt中的exe。

  int  WriteMax =  500 ; 
  for （ int  loop =  0 ; loop< primes.Count; loop ++）
 {
  if （WriteMax == Schleife）
 {
 
 WriteMax + =  500 ; 
 myWriter =  new  StreamWriter（  PrimUpto  + WriteMax +   .txt）; 
} 
 myWriter.WriteLine（primes [loop]）; 
 

我的尝试：



我甚至试图在其中放置一个Thread.sleep，它根本不起作用。



我还有另一个可能的解决方案，我忘记了吗？ br />


帮助我解决问题。

解决方案

正如理查德已经提到的那样，你必须在打开之前关闭作者。新的确保所有数据都被写入：

StreamWriter.Close Method（System.IO） [ ^ ]：

您必须调用Close以确保所有数据都正确写入基础流。

因此修改您的代码：

  int  WriteMax =  500 ; 
  for （ int  loop =  0 ; loop< primes.Count; loop ++）
 {
  if （WriteMax == Schleife）
 {
 
 WriteMax + =  500 ; 
  //  此处关闭上一个文件以确保所有数据都已写入 
 myWriter 。关（）; 
 myWriter =  new  StreamWriter（  PrimUpto  + WriteMax +   .txt）; 
} 
 myWriter.WriteLine（primes [loop]）; 
} 
  //  关闭当前（最后）文件 
 myWriter .Close（）; 

Hi there,
I wrote a Prim Number Calculator in the console and i want to save the prims in some textdocuments.

The problem is that those files are getting to huge to open ( 500 mb ) for a textdocument.
I startet to put them into serval documents, after every 500 prims a new txt,

Now here the Problem: the program works and works, after reaching the ammount of 500, it is creating the new file, when it does, it sops at
2543
2549
2551
2

it even skips some more in the new doc, it starts with 3581 so he ignored about 1000 possible prim numbers.

The exe starts with calculating if number n is a prim, if ist true, ist adding it onto a list.

at the end of the exe it stars writing it into the txt.

int WriteMax = 500;
for (int loop= 0; loop< primes.Count; loop++)
{
    if(WriteMax == Schleife)
    {

        WriteMax += 500;
        myWriter = new StreamWriter("PrimUpto"+WriteMax+".txt");
    }
    myWriter.WriteLine(primes[loop]);

What I have tried:

I even tried to put a Thread.sleep in it, which didnt work at all.

I there another possible solution which i forgot there?

Thx for helping me.

解决方案

As already mentioned by Richard you must close the writer before opening a new one to ensure that all data are written:

StreamWriter.Close Method (System.IO)[^]:

You must call Close to ensure that all data is correctly written out to the underlying stream.

So modify your code:

int WriteMax = 500;
for (int loop= 0; loop< primes.Count; loop++)
{
    if(WriteMax == Schleife)
    {
    
        WriteMax += 500;
        // Close previous file here to ensure that all data are written
        myWriter.Close();
        myWriter = new StreamWriter("PrimUpto"+WriteMax+".txt");
    }
    myWriter.WriteLine(primes[loop]);
}
// Close current (last) file
myWriter.Close();

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