CodeWars 刷题总结

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My Very Own Python's Split Function

Quite recently it happened to me to join some recruitment interview, where my first task was to write own implementation of built-in split function. It's quite simple, is it not?

However, there were the following conditions:

the function cannot use, in any way, the original split or rsplit functions,
the new function must be a generator,
it should behave as the built-in split, so it will be tested that way -- think of split() and split('')

This Kata will control if the new function is a generator and if it's not using the built-in split method, so you may try to hack it, but let me know if with success, or if something would go wrong!

Enjoy!

知识点

• 这个题目主要是熟悉生成器的使用，生成器可以返回一个可迭代的序列，记录函数之前执行到哪里，然后继续执行接下来的代码。通过yield可以返回生成器，但是生成器需要注意的是只能不断迭代，不能在从头开始迭代。
• 还有一个要注意的是split的分隔字符有可能是"*,"多个，需要使用正则模块的finditer搜索分割字符串的启示位置，然后根据起始位置的index对字符串进行分割。