因为这些是内置的函数，所以必须指定模块和函数名(参见清单21)。
As these are note built-in functions, you have to specify the module and function name (see Listing 21).
由于这些都是内置模块，因此您可以通过帮助解释器来了解更多相关内容，如清单7所示。
Because these are built-in modules, you can use the help interpreter to learn more about them, as demonstrated in Listing 7.
请注意，对每个请求均使用了许多内置HTTP模块。
Realize that there are a number of built-in HTTP modules utilized on each an every request.
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