如何在python中剪切列表中的字符串

Question

例如，列表将包含

list1 = ["mathematics", "sciences", "historical"]

我只需要绳子的中间部分

output_list = ["thema", "ience", "stori"]

Answer 1

Python列表理解Please read it up, it's useful.

还有python切片和索引You can read more here

对于您发布的问题：

output_list = [word[2:7] for word in list1]

print(output_list) 

Answer 2

您可以为此使用字符串切片：

x = "abcde"
print(x[1:4])  # prints elements [1, 4), i.e., "bcd"