刪除線以上蟒蛇文本具體線路

Question

我有這樣

ABC 
DEF 
Ref.By 
AAA 
AAA 

我想行Ref.By.前刪除所有行文本

我該如何在python中做到這一點？

Answer 1

lines = open('your_file.txt', 'r').readlines() 
search = 'Ref.By' 
for i, line in enumerate(lines): 
    if search in line: 
     break 

if i < len(lines) - 1: 
    with open('your_file.txt', 'w') as f: 
     f.write('\n'.join(lines[i + 1:])) 

這是正常的提供您的文件大小是在2-4 MB很好。將它存儲在超出此點的內存中會變得有問題。

Answer 2

試試這個

text_str = """ABC 
DEF 
Ref.By 
AAA 
AAA""" 

text_lines = text_str.split("\n") 

idx = text_lines.index("Ref.By") + 1 

result_text = "\n".join(text_lines[idx:]) 

print(result_text)