但对于很多设计师来说重新编码是一个问题，很多人可能并不疯狂到所有的程序都手写代码。
But it reintroduces the coding issue for a lot of designers, who might not be crazy about hand-coding everything.
对程序员来说，一个很大的好处是可以在文档中包含内容章节，而不需要重新编码标题层次。
One big advantage for programmers is that they can include sections of content in a document without the need to renumber heading levels.
程序不再假设一个字节就是一个字符，因此所有的数据都需要从 UTF-8 进行解码，然后再重新编码成 UTF-8。
No longer can the program assume that one byte is one character, so all data has to be decoded from UTF-8 and encoded back to UTF-8.
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