Question

我最近在Python 3.5中编写了这个脚本来搜索给定字符串的文本文件，我似乎无法弄清楚如何让脚本在“log”一词出现之后删除其余的单词。线。

file1 = input ('What is the name of the file? ')
search_string = input ('What are you looking for? ')
with open(file1) as cooldude:
for line in cooldude:
    line = line.rstrip()
    if search_string in line:
        print(line)

一个例子是： “我想保留这些东西。日志我不想要这些东西。” 我想要删除所有内容，包括单词“log”。谢谢！

Answer 1

如果你想要的只是在一行中的模式'log'之后删除文本的一部分，你可以使用str.partition输出的第一部分或第0个索引str.split：

>>> line = "I want to keep this stuff. log I don't want this stuff."

>>> line1,sep,_ = line.partition('log')
>>> line1
"I want to keep this stuff. "

>>> line2 = line.split('log')[0]
>>> line2  
"I want to keep this stuff. "

如果稍有不同，可以使用'log' maxsplit=1使用str.rsplit删除最后>>> line = "I want to keep this stuff. log log I don't want this stuff." >>> line3 = line.rsplit('log',1)[0] >>> line3 "I want to keep this stuff. log"后的部分：

RNGScope

Python文件搜索脚本

1 个答案: