笨办法学Python（二十九）

    下面是你要写的作业，这段向你介绍了“if语句”。把这段输入进去，让它能正确执行。然后我们看看你是否有所收获。

 1 people = 20
 2 cats = 30
 3 dogs = 15
 4 
 5 
 6 if people < cats:
 7     print "Too many cats! The world is doomed!"
 8 
 9 if people > cats:
10     print "Not many cats! The world is saved!"
11 
12 if people < dogs:
13     print "The world is drooled on!"
14     
15 if people > dogs:
16     print "The world is dry!"
17     
18     
19 dogs += 5
20 
21 if people >= dogs:
22     print "People are greater than or equal to dogs."
23 
24 if people <= dogs:
25     print "People are less than or equal to dogs."
26     
27 
28 if people == dogs:
29     print "People are dogs."

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