如何读取一行并忽略一些单词（python）

Question

我正在逐行阅读文本文件，我想忽略所有“and”，“To”和“From”的出现并返回其余部分。 python中有一个函数可以让我这样做吗？谢谢你的帮助。

Answer 1

使用替换或拆分空格中的行并重新组合而不使用您不需要的单词，例如：

In [6]: testsrt = 'I\'m reading a text file line by line and i want to ignore all occurrences of and , To and From and return the rest. Is there a function in python that will allow me to do that? Thanks for your help.'

In [7]: ts = testsrt.split(' ')                                                                                                                                                                                                                   

In [8]: excl = ["and", "To", "From"]                                                                                                                                                                                                              

In [9]: ' '.join([t for t in ts if not t in excl])                                                                                                                                                                                                
Out[9]: "I'm reading a text file line by line i want to ignore all occurrences of , return the rest. Is there a function in python that will allow me to do that? Thanks for your help."                                                          

请注意，如果您保留引号，则不会删除这些字词，因为这是逐字逐句的。

您还可以将re.replace视为继续进行的方式。