基础语法03--函数

黄振国

#!/usr/bin/python3

# 计算面积函数
def area(width, height):
    return width * height

def print_welcome(name):
    print("Welcome", name)

print_welcome("Runoob")
w = 4
h = 5
print("width =", w, " height =", h, " area =", area(w, h))



#!/usr/bin/python3

# 可写函数说明
def changeme( mylist ):
   "修改传入的列表"
   mylist.append([1,2,3,4])
   print ("函数内取值: ", mylist)
   return

# 调用changeme函数
mylist = [10,20,30]
changeme( mylist )
print ("函数外取值: ", mylist)