python对象调用方法后，属性的值可以被改变

print(emp)
emp对象的属性name和salary 都已经变为3了。

class Employee:
    '所有员工的基类'
    empCount = 0

    def __init__(self, name, salary):
        self.name = name
        self.salary = salary
        Employee.empCount += 1

    def displayCount(self):
        self.name = 3
        self.salary = 3
        print("Total Employee %d" % Employee.empCount)

    def displayEmployee(self):
        print("Name : ", self.name, ", Salary: ", self.salary)
name = 0
salary = 1
emp = Employee(name, salary)

emp.displayCount()
print(emp)