例如，如果两个线程同时调用一个函数，如asctime(它使用一个静态的数据区)，会产生不可思议的结果。
For instance, if two threads both call a function, such as asctime (which USES a single static data area), they can produce surprising results.
正如采用静态类型化的语言进行编程的朋友们一样，Python和其他动态语言的程序员通常使用关系数据库作为后端数据存储区。
Just like their friends who program in statically typed languages, programmers of Python and in other dynamic languages often use relational databases as a back-end data store.
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