price = 1.2#定义西瓜价格
weight = 3#定义西瓜公斤

print("西瓜的总价是",price*weight)

name = "老王"
name1 = "老宋"

print("两个名字加在一起是",name+name1) 

age = 20

#print("名字和年龄",name+age)

f = True #转int是1

print("年龄和布尔",age+f)
