Question

好吧，我有一个公共静态const：

public static ChatLine[] chatLine = new ChatLine[numChatLines];

调试显示了这段代码（稍后在同一个文件中）：

for (int num12 = 0; num12 < numChatLines; num12++)
{
    chatLine[num12] = new ChatLine();
}

将鼠标移到每个数据点上时，它会显示num12为0且chatLine为chatLine [0]。这是非常奇怪的，因为我的公共const就像我在上面给你看的那样......知道为什么会这样吗？

。

完整堆栈跟踪如下：

System.IndexOutOfRangeException was unhandled
  Message=Index was outside the bounds of the array.
  Source=Project1
  StackTrace:
       at Project1.Main.Initialize() in C:\Users\X\My Documents\Project1\Main.cs:line 7590
       at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
       at Microsoft.Xna.Framework.Game.Run()
       at Project1.Program.Main(String[] args) in C:\Users\X\My Documents\Project1\Program.cs:line 14
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       at System.Activator.CreateInstance(ActivationContext activationContext)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

Answer 1

当chatLine的长度为零时，创建数组时numChatLines为零。您应该在设置numChatLines。

后创建数组

Answer 2

这可能是因为 numChatLines 在

之后被赋予了一个值

public static ChatLine[] chatLine = new ChatLine[numChatLines];

..已初始化，这将提供 0 值。

尝试：

public static ChatLine[] chatLine;
void main()
{
  /* ... your code ... */
  numChatLines = 12;
  chatLine = new ChatLine[numChatLines];
}

奇怪的IndexOutOfRangeException，即使被抓住了

2 个答案: