Begin with a simple program that reads in a filename from the command-line.

首先从一个简单的程序开始，该程序从命令行读入一个文件名。

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Listing 1 demonstrates this technique with a simple program to print the encodings of all URLs given on the command line.

清单1通过一个简单的程序说明该技术，输出命令行中给定的所有url的编码。

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Listing 1 demonstrates this technique with a simple program to print the encodings of all URLs given on the command line.

清单1通过一个简单的程序说明该技术，输出命令行中给定的所有url的编码。

youdao