Python：如何读取段落的每一行并复制具有特定单词的行

Question

我需要阅读一个段落，我需要复制只有关键字的行。

段落是这样的：

aa

a

aaa

aaaaa

[new,aaa] < name of the file with path ] //asabbsjk

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[mod] <name of the file with path 

我的算法：

if keyword exists in the line :

      copy that line 

else: 

      leave it

Answer 1

尝试这几行代码：copy_lines= []for line in paragraph.split('\n'):&nbsp; &nbsp; if keyword in line:&nbsp; &nbsp; &nbsp; &nbsp; copy_lines.append(line)print(copy_lines)或一张内衬：copy_lines= [line for line in paragraph.split('\n') if keyword in line]

Answer 2

如果您尝试从文件中读取该段落：keyword = "your_keyword"with open("demofile.txt", "r") as f:&nbsp; &nbsp; line_list = f.readlines()&nbsp; &nbsp; magic_lines = [line for line in line_list if keyword in line]