对示例日志文件运行该脚本，将产生一些相关的统计信息，从而显示指定域的邮件数量和大小（请参见 清单 4）。
Running the script on a sample log file produces some statistics showing the mail counts and sizes for the domain specified (see Listing 4).
从日志文件可以看出，用户对 why.html 页面的请求比较频繁，但是如果您认为 how.html 对于用户更为重要，那么只需修改相应的作用域值对排序做出纠正。
Users may more frequently request the why.html page according to the log files, but if you know it's more important they know the how.html, simply provide corresponding scores for correct sorting.
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