笨办法30Else 和 If

 people = 30
 cars = 40
 trucks = 30

 if cars < people:
     print "We should take the cars."

 elif people < trucks:
     print ""

 elif people > trucks:
     print ""

 elif people == trucks:
     print ""    

 elif cars > people:
     print "We should not take the cars."

 else:
     print "We can't decide."

输出结果：

PS E:\pytest> python ex301.py
5