【笨方法学python】ex29 - 如果(if)

代码如下：

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people = 20
cats = 30
dogs = 15

if people < cats:
    print "Too many cats! The world is doomed!"

if people > cats:
    print "Not many cats! The world is saved!"

if people < dogs:
    print "The world is srooled on!"

if people > dogs:
    print "The world is dry!"


dogs += 5

if people >= dogs:
    print "People are greater than or equal to dogs."

if people <= dogs:
    print "People are less than or equal to dogs."

if people == dogs:
    print "People are dogs."

执行结果：