Question

我的txt文件包含单词列表，如下所示：

Polynomial

我想删除每个单词中的最后一个字母，如果该字母是＆＃34; a＆＃34;或＆＃34; o＆＃34;。

我对此非常陌生，所以请简单解释一下。

Answer 1

re.sub(r"[ao]$","",word)

这应该为你做。

Answer 2

试试这个：

Enter the first character: 12
Enter the second character: The characters are 1 and 2

Answer 3

首先读取文件并分割线条。如果满足条件，则切断最后一个字符，并将新字符串附加到包含已分析和修改的字符串/行的列表中：

#!/usr/bin/env python3
# coding: utf-8

# open file, read lines and store them in a list
with open('words.txt') as f:
    lines = f.read().splitlines()

# analyse lines read from file
new_lines = []
for s in lines:
    # analyse last char of string,
    # get rid of it if condition is fulfilled and append string to new list
    s = s[:-1] if s[-1] in ['a', 'o'] else s
    new_lines.append(s)

print(new_lines)

如果它是＆＃39; a＆＃39;如何删除单词中的最后一个字母。或者＆＃39; o＆＃39;？

3 个答案: