可能有一種情況,當你想檢查另一個條件中的另一個條件解析為 true。 在這種情況下,你可以使用嵌套 if 結構。
	
		在嵌套 if 結構,一個 if...elif...else 的構造裏面可以有另一個 if...elif...else 結構。
	
	語法:
		嵌套的語法:if...elif...else 的結構可能是:
	
if expression1:
   statement(s)
   if expression2:
      statement(s)
   elif expression3:
      statement(s)
   else
      statement(s)
elif expression4:
   statement(s)
else:
   statement(s)
	示例:
# !/usr/bin/python3
num=int(input("enter number"))
if num%2==0:
    if num%3==0:
        print ("Divisible by 3 and 2")
    else:
        print ("divisible by 2 not divisible by 3")
else:
    if num%3==0:
        print ("divisible by 3 not divisible by 2")
    else:
        print  ("not Divisible by 2 not divisible by 3")
	
		當執行上面的代碼,它產生以下結果:
	
enter number8 divisible by 2 not divisible by 3 enter number15 divisible by 3 not divisible by 2 enter number12 Divisible by 3 and 2 enter number5 not Divisible by 2 not divisible by 3
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