python - 如何将列表中的项目连接(连接)到单个字符串

Question

如何将字符串列表连接成单个字符串？

例如，给定 ['this', 'is', 'a', 'sentence'] , 如何获得 "this-is-a-sentence" ?

---

_{关于处理独立变量中的几个字符串，见How do I append one string to another in Python? .}

_{相反的过程 - 从字符串创建列表 - 见 How do I split a string into a list of characters?或 How do I split a string into a list of words?视情况而定。}

Answer 1

使用 str.join :

>>> words = ['this', 'is', 'a', 'sentence']
>>> '-'.join(words)
'this-is-a-sentence'
>>> ' '.join(words)
'this is a sentence'