python：從一個文件複製特定的行到另一個文件

Question

我有一個文件，我想從它複製只有特定的行到另一個文件。我試圖創建一個功能：

def copytotemp(logfile, fromline, toline): 
    with open(logfile) as origfile: 
     with open("templog.log", "w") as tempfile: 
      for num, line in enumerate(origfile, 0): 
       if (num + 1) <= fromline and (num + 1) >= toline: 
        tempfile.write(line) 

但tempfile.log總是空空的。 謝謝

Answer 1

我有一個操作員的錯誤。

def copytotemp(logfile, fromline, toline): 
    with open(logfile) as origfile: 
     with open("templog.log", "w") as tempfile: 
      for num, line in enumerate(origfile, 1): 
       if num >= fromline and num <= toline: 
        tempfile.write(line) 

正在