jupyter 去除文本中不想要的字

可以使用 Python 的字符串函数和正则表达式来去除文本中不想要的字。下面是一些示例代码：

1. 去除指定的单词：

import re

text = "This is some text that contains unwanted words."
unwanted_words = ["text", "unwanted"]

pattern = re.compile(r'\b(' + '|'.join(unwanted_words) + r')\b')
text = pattern.sub('', text)

print(text)  # "This is some that contains words."

2. 去除特定字符：

text = "This is some text with unwanted characters."
unwanted_chars = ["a", "e", "i", "o", "u"]

for char in unwanted_chars:
    text = text.replace(char, "")

print(text)  # "Ths s sm txt wth nwntd chrctrs."

3. 去除所有非字母字符：

text = "Th1s is s0me t3xt w1th n0n-lette4r ch@ract3rs!"

text = re.sub(r'[^a-zA-Z\s]', '', text)

print(text)  # "Ths is sme txt wth nnlettechractrs"

以上是三种常见的方法，你可以根据具体需求进行调整。