fix bug

[LiuChangFreeman]

文件路径的定义应当出现在path_home变量赋值之后

if not os.path.exists(path_home):
    os.mkdir(path_home)
PATH_HOSPITAL = os.path.join(path_home, "HOSPITAL.csv")
PATH_LOGISTICAL = os.path.join(path_home, "LOGISTICAL.csv")
PATH_HOTEL = os.path.join(path_home, "HOTEL.csv")