python 字典形式编写 if else语句

# coding:utf-8

day = 1

def get_sunday():
    print(777)
    return "Sunday"

def get_monday():
    print(111)
    return "Monday"

def get_tuseday():
    print(222)
    return "Tuesday"

def get_default():
    return "Unkown"

switcher = {
    0 : get_monday,
    1 : get_tuseday,
    2 : get_sunday
}
day_name = switcher.get(day,get_default)()
print(day_name)