[英]How to remove multiple lines from a file with python
我正在嘗試使用以下代碼從文件中刪除行:
with open('example_file', 'r') as file:
file_content = file.readlines()
file.close()
with open('example_file', 'w') as new_file:
for line in file_content:
if line.strip("\n") != 'example_line_1':
new_file.write(line)
new_file.close()
這適用於一條線,但我怎樣才能刪除其他(多條)線呢?
您可以使用and
來完成。
...
with open('example_file', 'w') as new_file:
for line in file_content:
currentLine = line.strip("\n")
if currentLine != 'example_line_1' and currentLine != 'example_line_2':
new_file.write(line)
new_file.close()
但這變得太大了,太快了。 您還可以使用一個包含您希望從一行中刪除的單詞的數組,然后檢查當前行是否包含這些單詞中的任何一個:
...
words = ["example_line_1", "example_line_2", "foobar"]
with open('example_file', 'w') as new_file:
for line in file_content:
currentLine = line.strip("\n")
if currentLine not in words:
new_file.write(line)
new_file.close()
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