1. switch (day):
    2.     case 0 :
    3.         dayName = get_Sunday;
    4.         break;
    5.     case 1 ：
    6.         dayName = get_Monday;
    7.         break;
    8.     case 2 :
    9.         dayName = get_Tuesday;
    10.         break;
    11.     default :
    12.         dayName = "UNknow"
    13.         break;
    14. def get_Sunday:
    15.     return "Sunday"
    16. def get_Monday:
    17.     return "Monday"
    18. def get_Tuesday:
    19.     return "TUesday"