class Employee:
   '所有员工的基类'
   empCount = 0
   empSumSalary = 0
   def __init__(self, name, salary,title):
      self.name = name
      self.salary = salary
      self.title = title
      Employee.empCount += 1
      Employee.empSumSalary += salary
      
   #@property
   def displayEmployee(self):
      print ("Name : ", self.name,  ", Salary: ", self.salary,"title: ",self.title)
      
   @classmethod  
   def total(cls):
      print("Total: {0}".format(cls.empCount))

"创建 Employee 类的3个对象"
emp1 = Employee("Zara", 2000,"PM")
emp2 = Employee("Manni", 5000,"Analyst")
emp3 = Employee("Ke",9000,"Data Analyst")


emp1.displayEmployee()
emp2.displayEmployee()
emp3.displayEmployee()

Employee.total()

#print ("Total Employee %d" % Employee.empCount,Employee.empSumSalary)