在复制内存时检测到可能的 I/O 争用条件。默认情况下，I/O 包不是线程安全的。在多线程应用程序中，必须以线程安全方式(如 TextReader 或 TextWriter 的 Synchronized 方法返回的线程安全包装)访问流。这也适用于 StreamWriter 和 StreamReader 这样的类。

Probable I/O race condition detected while copying memory. The I/O package is not thread safe by default. In multithreaded applications, a stream must be accessed in a thread-safe way, such as a thread-safe wrapper returned by TextReader's or TextWriter's Synchronized methods. This also applies to classes like StreamWriter and StreamReader.