在講else、elif之前，先來讓我們看看什麼是"if"

程式碼如下:

[In]
kids=20
snack=100
soda=21
candy= 25
if candy>kids: #如果糖果大於小孩則打印
    print('Kids will get diabetes')
if soda>kids: #如果蘇打水大於小孩則打印
    print("There have 21 soda")
if kids != snack: #如果小孩人數不等於點心則打印
    print('They save!')
[Out]
Kids will get diabetes
There have 21 soda
They save!

接下來加入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: #如果都沒有達到上述條件則打印
    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: #檢查左操作數的值是否大於或等於右操作數的值，如果是，則條件成立。
    print("Too many kids")

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

今日總結:
應該這樣解釋大家就對if else elif有著初步的認識了!