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Asked:2022-05-17 13:37:44 +0000 UTC2022-05-17 13:37:44 +0000 UTC

您需要显示所有信息并找到所有员工工资的平均值

  • 772

创建一个Employee带参数的类：

name

age

salary

  • __init__(self,name, age, salary)

  • def printData() // Данная функция возвращает все данные работника.

创建 2 个继承自 class 的类Employee：

    1 – Programmer       

    programmingLanguage
  • __init__(self,name, age, salary, programmingLanguage)

根据参数重新定义函数printData()。

2 - 数据分析

数据库工具

  • __init__(self,name, age, salary, databaseTool)

根据参数重新定义函数printData()。

在主类中，您必须创建 Programmer、DataAnalytics 类的多个对象，并将它们添加到 Employee 的总列表中。

您需要显示所有信息并找到所有员工工资的平均值。

这是我所做的：

第一个文件：

class Employee:

    def __init__(self, name, age, salary):
        self.name = name
        self.age = age
        self.salary = salary

    def print_data(self):
        return "Employee => " + self.name + " " + str(self.age) + " " + str(self.salary)

class Programmer(Employee):

    def __init__(self, name, age, salary, programmingLanguage):
        super().__init__(name, age, salary)
        self.programmingLanguage = programmingLanguage

    def print_data(self):
        return "Programmer => " + self.name + " " + str(self.age) + " " + str(self.salary) + " " + self.programmingLanguage


class DataAnalytics(Employee):

    def __init__(self, name, age, salary, databaseTool):
        super().__init__(name, age, salary)
        self.databaseTool = databaseTool

    def print_data(self):
        return "DataAnalytics => " + self.name + " " + str(self.age) + " " + str(self.salary) + " " + self.databaseTool

第二个文件：

from employee import Employee, Programmer, DataAnalytics

e1 = Employee('Victor', 29, 200000)
p2 = Programmer('Alexandra', 24, 300000, 'Java')
d3 = DataAnalytics('Ben', 27, 400000, 'SQL')
print(e1.print_data())
print(p2.print_data())
print(d3.print_data())

那我就想不通新功能怎么用了 ，需要显示所有信息，求所有员工的平均工资

python

2 个回答

  1. Best Answer

    我们创建一个接受用户列表的函数，并在其中调用每个用户print_data并计算平均工资

    例子：

    def print_all_data(users):
    for u in users:
        print(u.print_data())

    print()

    salaries = [u.salary for u in users]
    mean_salary = sum(salaries) / len(salaries)
    print(f'Средняя зарплата: {mean_salary}')


e1 = Employee('Victor', 29, 200000)
p2 = Programmer('Alexandra', 24, 300000, 'Java')
d3 = DataAnalytics('Ben', 27, 400000, 'SQL')
users = [e1, p2, d3]
print_all_data(users)

    结果：

    Employee => Victor 29 200000
Programmer => Alexandra 24 300000 Java
DataAnalytics => Ben 27 400000 SQL

Средняя зарплата: 300000.0

    PS。

    为了提高代码的可读性，您可以print_all_data指定函数参数的类型，例如：

    from typing import List


def print_all_data(users: List[Employee]):
    ...
    • 1

  2. 目前尚不完全清楚这里需要什么：

    在主类中，您必须创建 Programmer、DataAnalytics 类的多个对象，并将它们添加到 Employee 的总列表中。

    有问题的主要课程是什么， Employee 的一般列表是什么。但看起来您只需要创建 Programmer 和 DataAnalytics 类的实例，而无需创建 Employee 实例。

    也许这样的意思是：

    class Employee:
    employees = []  # 'общий список для Employee'

    def __init__(self, name, age, salary):
        self.name = name
        self.age = age
        self.salary = salary
        
    def print_data(self):
        return "Employee => " + self.name + " " + str(self.age) + " " + str(self.salary)

    @classmethod
    def all_data(cls):
        return '\n'.join(e.print_data() for e in cls.employees)
    
    @classmethod
    def avr_salary(cls):
        return sum(e.salary for e in cls.employees)/len(cls.employees)

class Programmer(Employee):

    def __init__(self, name, age, salary, programmingLanguage):
        super().__init__(name, age, salary)
        self.programmingLanguage = programmingLanguage
        super().employees.append(self)

    def print_data(self):
        return "Programmer => " + self.name + " " + str(self.age) + " " + str(self.salary) + " " + self.programmingLanguage

class DataAnalytics(Employee):

    def __init__(self, name, age, salary, databaseTool):
        super().__init__(name, age, salary)
        self.databaseTool = databaseTool
        super().employees.append(self)

    def print_data(self):
        return "DataAnalytics => " + self.name + " " + str(self.age) + " " + str(self.salary) + " " + self.databaseTool

    那么结果将是这样的：

    p2 = Programmer('Alexandra', 24, 300000, 'Java')
d3 = DataAnalytics('Ben', 27, 400000, 'SQL')

print(Employee.all_data())
'''
Programmer => Alexandra 24 300000 Java
DataAnalytics => Ben 27 400000 SQL
'''
print(Employee.avr_salary())
'''
350000.0
    • 0

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