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我仿照小甲鱼第二节课的例子做的, 可是不知道为什么if语句后的那一句出不来,else后面的和结束语一起跑出来了,输什么进去都是一样的。我改怎么改啊??? 
 
 
 
 
 
 
 
 
- print('-----------------------------------------------------------------------')
 
 - words = input('what is your name? :')
 
 - guess = input(words)
 
 - if guess == Jack:
 
 -     print('nice to see you')
 
 - else:
 
 -      print('who are you?')
 
 - print('bye bye')
 
 
  复制代码 
- print('-----------------------------------------------------------------------')
 
 - words = input('what is your name? :')
 
 - if words == "Jack":
 
 -     print('nice to see you')
 
 - else:
 
 -     print('who are you?')
 
 - print('bye bye')
 
 
  复制代码 
楼主参考: 
1. Jack 为字符串,需引号; 
2. 无需定义guess变量了~~  
 
 
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