Day8:如果怎样就怎样

在讲else、elif之前，先来让我们看看什麽是"if"

程序码如下:

[In]
kids=20
snack=100
soda=21
candy= 25
if candy>kids: #如果糖果大於小孩则打印
    print('Kids will get diabetes')
if soda>kids: #如果苏打水大於小孩则打印
    print("There have 21 soda")
if kids != snack: #如果小孩人数不等於点心则打印
    print('They save!')
[Out]
Kids will get diabetes
There have 21 soda
They save!

接下来加入else&elif

kids=10
snack=5
soda=8
candy= 3
if candy>kids: #如果糖果多於小孩就打印
    print('Kids will get diabetes')
elif candy<kids: #反之
    print("Kids are save")
else: #如果都没有达到上述条件则打印
    print('Kids dont know how to do that!')
if soda>kids:
    print("There have 8 soda")
elif soda<kids:
    print("The soda is not enough")
else:
    print('Soda is good')
if kids != snack: #不等於
    print('They save!')
if kids >= 10: #检查左操作数的值是否大於或等於右操作数的值，如果是，则条件成立。
    print("Too many kids")

[Out]
Kids are save
The soda is not enough
They save!
Too many kids

今日总结:
应该这样解释大家就对if else elif有着初步的认识了!