如何将相同行写入新文件？

Question

Answer 1

with open('text1.txt','r') as f1:
    data1 = f1.read().split('\n')
with open('text2.txt','r') as f2:
    data2 = f2.read().split('\n')
with open('text3.txt','a+') as f3:
    for i in data2:
        if i in data1:
            f3.write(i+'\n')

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