Python 如何使用关键字从txt文件中搜索和检索整行

搜索工作，除了我有一个keywords.txt文件包含简单的单词，如“green，blue等”（都在自己的行上），然后我有一个文本，如“我的衬衫是绿色的”，当我使用此代码时，它不会找到任何东西，但如果我将txt文件中的句子改为一个单词，它会找到它。我需要它在文档中搜索关键字，然后显示它所在的整行内容

试试这个

searchfile =open('test.txt','r')
    for line in searchfile:
        if line in array: print line
    searchfile.close() 

searchfile = open('keywords.txt', 'r')
infile = open('text.txt', 'r')

for keywords in searchfile:
    for lines in infile:
        if keywords in lines:
           print lines

您可以尝试以下方法：

searchfile = None
with open('test.txt','r') as f:
    searchfile = f.readlines()
    f.close()

for line in searchfile:
    for word in array:
        if word in line:
            print line

---

将关键字设置为一个

集合

，检查行中是否有单词在集合中：

searchFile = open('keywords.txt','r')
file = open('text.txt','r') 
file1 = file.readlines()  
file.close()
for key in searchFile:
    for line in file1:
        if key in Line:
             print (line)

如果您不在“我的衬衫是绿色的”中拆分

“绿色”->则为True

。你还必须考虑标点和大小写

如果要忽略大小写并删除标点符号，可以使用

str.lower

和

str.strip

：

with open('search.txt','r') as f1, open("keywords.txt") as f2:
    st = set(map(str.rstrip, f2))
    for line in f1:
        if any(word in st for word in  line.split()):
            print(line)

from string import punctuation
with open('search.txt','r') as f1, open("keywords.txt") as f2:
    st = set(map(str.rstrip, f2))
    for line in f1:
        if any(word.lower().strip(punctuation) in st for word in line.split()):
            print(line)