Python 从文本文件中删除或清除一行

就像标题一样简单，真的。但不知怎么的挣扎着

用boop删除行

beep
boop 
bop 
Hey 
beep
boop
bop

---

我不知道完全删除或清除该行的最佳方法。

您可以以读写模式打开文件并删除符合条件的行

with open(file_path, "r+") as fp:
    lines = fp.readlines()
    fp.seek(0)
    for line in lines:
        if "boop" not in line:
            fp.write(line)
    fp.truncate()

seek

重置文件指针

---

参考：

打开文件并读取其内容，然后再次打开文件，将行写入其中，但不包括包含“boop”的行：

path='path/to/file.txt'
with open(path, "r") as f:
    lines = f.readlines()
    with open(path, "w") as f:
        for line in lines:
            if line.strip("\n") != "boop":
                f.write(line)

path='path/to/file.txt'
with open(path, "r") as f:
    lines = f.readlines()
    with open(path, "w") as f:
        for line in lines:
            if line.strip("\n") != "boop":
                f.write(line)