python中的elif是什么意思

elif是else if的简写。else和elif语句也可以叫做子句，因为它们不能独立使用，两者都是出现在if、for、while语句内部的。else子句可以增加一种选择；而elif子句则是需要检查更多条件时会被使用，与if和else一同使用。

实例：

people = 30
cars = 40
buses = 15
  
  
if cars > people: 
  print( "We should take the cars.")
elif cars < people: 
  print ("We should not take the cars.")
else: 
  print ("We can't dicide.")
  
  
if buses > cars: 
  print ("That's too many buses.")
elif buses < cars: 
  print ("Maybe we could take the buses.")
else: 
  print ("We still can't decide.")
  
  
if people > buses: 
  print ("Alright, let's just take the buses.")
else: 
  print ("Fine, let's stay home then.")

运行结果：

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