python - 为什么更改类变量被认为是一种不好的做法？

Question

如您所见，我正在尝试创建一个类，以存储员工的传记数据并将它们存储在字典中。

我想问一下更改类变量是否是一种不好的做法。如果是，请解释为什么会这样。什么是做我正在做的事情的完美方式？

# Defining a class for storing the information related to the instructors at bcoder company
class Employee:
    company_records = {}
    Employee_count = 0

    def __init__(self, fname, lname, email_id, contact, gender):
        self.fname = fname
        self.lname = lname
        self.email_id = email_id
        self.contact = contact
        self.gender = gender
        self.add_records()

    # Defining a function for returning the full name of our employee
    def fullname(self):
        return("{} {}".format(self.fname, self.lname))

    def add_records(self):
        Employee.Employee_count += 1
        Employee.company_records[Employee.Employee_count] = {
            "Name": self.fullname(),
            "Email_id": self.email_id,
            "Contact": self.contact,
            "Gender": self.gender
        }


emp_1 = Employee("Vaibhav", "Yadav", "[e-mail]", 9432098712, "Male")
print(emp_1.fullname())
print(Employee.company_records)
emp_2 = Employee("vaibhav", "Gupta", "[e-mail]", 9323118976, "male")
print(Employee.company_records)
emp_2 = Employee("Yogesh", "Yadav", "[e-mail]", 9323118976, "male")
print(Employee.company_records)

做上述事情的优雅方式是什么？

标签： python