已经过的String.intern的价值？ [英] Has String.Intern had the value?

问题描述

的String.intern 具有稍后可检索的字符串，特殊池。

String.Intern has a special pool for strings which can later be retrieved.

有什么办法，我知道，指定字符串的是取自池，并没有新创建的？ 例如：

Is there any way for me to know that the specified string was taken from the pool , and was NOt newly created ? example :

string s1 = "MyTest"; 
string s2 = new StringBuilder().Append("My").Append("Test").ToString(); 
string s3 = String.Intern(s2); 
Console.WriteLine((Object)s2==(Object)s1); // Different references.
Console.WriteLine((Object)s3==(Object)s1); // The same reference.

S3裁判VAL 是从池中获取

有什么办法，我知道了吗？

is there any way for me to know it ?

推荐答案

您可能有一些运气的 IsInterned 方法，它返回空如果字符串不拘留，并返回一个参考，如果它是从池中获取。但是，此行为将取决于运行，并可能不会产生你所期望的。

You might have some luck with the IsInterned method, it returns null if the string wasn't interned, and returns a reference if it was taken from the pool. However, this behaviour will depend on the runtime, and might not yield what you expect.

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