📜  txt 文件重复行去除器 python 代码示例

📅  最后修改于: 2022-03-11 14:47:11.796000             🧑  作者: Mango

代码示例1
lines_seen = set() # holds lines already seen

with open("file.txt", "r+") as f:
    d = f.readlines()
    f.seek(0)
    for i in d:
        if i not in lines_seen:
            f.write(i)
            lines_seen.add(i)
    f.truncate()