一個比較x.split（）[現場]一些值

Question

我有以下代碼：

with open('/home/adiel/log', 'r') as f: 

    for line in [[x.split()[3], x.split()[4], x.split()[5], x.split()[6]] for x in f]: 
     print(line) 

它工作正常，併爲我打印這些值：

['172.18.0.124', '172.18.0.5', '3306', '39064'] 
['172.18.0.124', '172.18.0.5', '3306', '62717'] 
['172.18.0.5', '172.18.0.124', '52909', '3306'] 
['172.18.0.5', '172.18.0.124', '13989', '3306'] 

但我想將x.split()[5]與443或65535等一些值進行比較，只有與它們匹配時纔打印行。 我該如何做到這一點？ 感謝的

Answer 1

您可以創建劈叉發電機然後打印過濾值：

with open('/home/adiel/log', 'r') as f: 
    iter_lines = (x.split() for x in f) 
    for line in (x[3:7] for x in iter_lines if x[5] in {'443', '65535'}): 
     print(line) 

或者使用一個for循環split()行，如果條件滿足打印：

with open('/home/adiel/log', 'r') as f: 
    for line in f: 
     line = line.split() 
     if line[5] in {'443', '65535'}: 
      print(line[3:7])