import os

directory = '/path/to/directory'

for filename in os.listdir(directory):
    if filename.endswith('.txt'):
        with open(os.path.join(directory, filename), 'r+') as file:
            lines = file.readlines()
            file.seek(0)
            for line in lines:
                words = line.split()
                new_line = ' '.join(words[:2]) + '\n'
                file.write(new_line)
            file.truncate()

将/path/to/directory替换为目录的路径

这应该行得通：

import os

DIR = '/path'

for listed_file in os.listdir(DIR):
    if listed_file.endswith(".txt"):
        with open(listed_file, 'r') as file:
            final_lines = []
            for line in file.readlines():
                new_line = " ".join(line.split()[:2]) + "\n"
                final_lines.append(new_line)
        file = open(listed_file, 'w')
        file.writelines(final_lines)

它将遍历DIR中的每个文件，检查它是否是txt文件，然后获取它的行并用新的拆分行重写它。

PowerShell版本：

Get-ChildItem .\*.txt |Foreach-Object {
    (Select-String -LiteralPath $_ -Pattern '^\S+\s\S*').Matches |
    Set-Content -LiteralPath $_
}