笨办法学python3练习代码ex19.py

定义函数的语法：

　　　　def  函数名(参数)

　　　　　　（语句）

 #函数和变量
 #函数里的变量与脚本里的变量是没有联系的。
 def cheese_and_crackers(cheese_count,boxes_of_crackers):
     print(f"You have {cheese_count} cheese!")
     print(f"You have {boxes_of_crackers} boxes of crackers!")
     print("Man that's enough for a party!")
     print("Get a blanket.\n")    #blanket ：毛毯

 print("We can just give the function numbers directly: ")
 cheese_and_crackers(20,30)

 print("OR, We can use variables from our script:")
 amount_of_cheese = 10
 amount_of_crackers =50
 cheese_and_crackers(amount_of_cheese,amount_of_crackers)

 print("We can even do math inside too: ")
 cheese_and_crackers(10 + 20, 5 + 6)

 print("And we can combine the two, variable and math: ")
 cheese_and_crackers(amount_of_cheese + 100, amount_of_crackers + 1000)