python解析文件有共同的单词和打印下一行

Question

我试图解析一个文本文件，如果它包含，如“汽车，自行车，汽车”这样的词，如果这些词（可能会超过3个）存在，那么它必须打印为“燃料运行”和下一行

程序： 它给我的错误

with open(qwer.txt) as f:
vehicle=("car","bike","automobile")            
   for line in f:
      for part in line.split():
            if vehicle in part:
                 print line.index(key)+1
                 print "runs on fuel" 

请帮助解答赞赏！

Answer 1

套装最适合此类事物

with open("qwer.txt") as f:
    vehicle=set(("car","bike","automobile"))
    for line in f:
      match = vehicle.intersection(line.split())
      if match:
            print "%s runs on fuel" % match.pop()