First, it can encode a single byte character from any byte-oriented code set, and second, when used in an array, it can encode any multi-byte character from a multi-byte character set such as Unicode.

首先，它可以从面向字节的代码集编码单字节字符，其次，当在数组中使用时，它可以从多字节字符集(如unicode)，编码任何多字节字符。

youdao

The interesting functions in the code are encode() and decode(), at the bottom of Listing 3.

代码中最有趣的函数是位于 清单 3 底部的 encode() 和 decode()。

youdao

Your code just needs to loop through the fields and encode the values to make sure that there are no invalid characters.

代码只要顺着字段循环并对值编码，确保没有无效字符。

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