这对于那些业已脱离控制的代码库而言并非易事，如果不诉诸于重构，那么唯一的解决之道就是彻底地重写。

While this is hardly an easy task with code base that has grown out of control, without refactoring the only solution you can look up to is the complete rewrite.

youdao

博客中的链接，其实还没有涉及某些恶意网站是如何依据终端用户的搜寻内容而彻底重写代码的。

That blog link doesn't even cover how some malicious Web sites completely rewrite their code depending on what the end-user is looking for.

youdao