C＃Stringbuilder在添加大量文本時損壞內容

Question

我遇到了一個我看起來無法解決的stringbuilder問題。爲了簡化創建以下方法問題：

private static string TestBigStrings() { 
    StringBuilder builder = new StringBuilder(); 

    for (int i = 1; i < 1500; i++) { 
    string line = "This is a line isn't too big but breaks when we add to many of it."; 
    builder.AppendLine(line); 
    } 

    return builder.ToString(); 
} 

它應該只是補充該行1500次，事後其合併爲一個字符串並返回它。然而，不僅僅是組合它會破壞內容。在結果中間的某處您可以找到文本：

This is a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of ...s a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of it. 
This is a line isn't too big but breaks when we add to many of it. 

該項目是一個簡單的控制檯。我也嘗試了所有其他的解決方案，以檢查是否這是可能的一些其他的方式，如：

• 寫入文本文件（同腐敗和折斷早）

• 其寫入存儲器流和讀取（相同腐敗）

• 使用列表和加入該（相同腐敗）

• 只是使用+ =上一個字符串（相同腐敗）

• 使用string.concat（同腐敗）

全體同仁，我問正在運行到同樣的問題一樣，所以它不應該是PC相關。有人知道這裏發生了什麼嗎？

Answer 1

這是你正在經歷什麼？

嗯，這只是躺在給你調試。它會縮短太長的字符串以避免過多的內存使用。

我寫的字符串的文件時，用一個簡單的：

File.WriteAllText("BigString.txt", str); 

你猜怎麼着：字符串是預期在那裏，它不以任何方式損壞。