尝试通过用户的输入创建对象 [英] Trying to create an object via a user's input

问题描述

我试图通过用户输入创建一个员工对象，但我遇到了我的代码的问题。当我运行这没有什么发生，它不会抛出任何错误。

  class employee（object）：
 
 def __init __（self，name，pay_rate，monday，tuesday ，星期三，星期四，星期五，星期六，星期日）：
 self.create_employee（）
 self.name = name 
 self.pay_rate = pay_rate 
 self.monday = monday 
 self.tuesday = tuesday 
 self.wednesday = wednesday 
 self.thursday = thursday 
 self.friday = friday 
 self.saturday = saturday 
 self.sunday = sunday 
 
 
 def weekly_total（self）：
 self.total_weekly_hours = self.monday + self.tuesday + self.wednesday + self.thursday + self.friday + self。 saturday + self.sunday 
 self.emp_name（）
 print\\\
本周您的工作时间为：，self.total_weekly_hours，\\\

 
 
 def emp_name（self）：
 print\\\
当前雇员是：，self.name 
 
 
 def create_employee（self）：
 self。 name = raw_input（Enter new employee name）
 self.pay = input（Enter pay rate）
 self.monday = raw_input（Enter munday hours）
 self.tuesday = raw_input（星期四小时？）
 self.wednesday = raw_input（wed hours？）
 self.thursday = raw_input （星期五小时？）
 self.saturday = raw_input（星期六小时？）
 self.sunday = raw_input（星期几小时？）
 self.object_name = raw_input命名对象）
 
 self.object_name = employee（self.name，self.pay，self.monday，self.tuesday，self.wednesday，self.thursday，self.friday，self.saturday ，self.sunday）
 print self.name，was created
  

解决方案

您当前的代码有一个不断的循环，因为 __ init __ 和 create_employee 。您为初始化器中的所有属性取参数，然后忽略它们并请求用户输入，将其传递给新对象的初始化器，忽略它并... ...

我想你想要的是一个更像的结构：

  class Employee（object）：＃PEP-8 name 
 
 def __init __（self，name，pay，hours）：
＃指定实例属性（不要调用from_input！）
 
 def __str __ b $ b＃替换emp_name，返回一个字符串
 
 @property 
 def weekly_total（self）：
 return sum（self.hours）
 
 @ class方法
 def from_input（cls）：
＃take（and validate and convert！）input 
 return cls（name，pay，hours）
  / pre> 
 
 
您可以使用：
  employee = （John Smith，12.34，（8,8,8,8,8,0,0））
 print str（employee）＃call __str__ 
  
或：
  employee = Employee.from_input $ b print employee.weekly_total＃access property 
  
请注意，不要为不同的日期分别分配实例属性，我假设每天的单个列表/元组的小时。如果日期名称很重要，请使用字典 {'Monday'：7，...} 。记住，所有 raw_input 是一个字符串，但你可能想要小时和支付为浮点数;有关输入验证的详情，请参见此处。 
 
I'm trying to create an employee object via user input, but I'm running into issues with my code. When I run this nothing happens and it's not throwing any errors either. 
class employee(object):

    def __init__(self,name,pay_rate,monday,tuesday,wednesday,thursday,friday,saturday,sunday):
        self.create_employee()
        self.name = name
        self.pay_rate = pay_rate
        self.monday = monday
        self.tuesday = tuesday
        self.wednesday = wednesday
        self.thursday = thursday
        self.friday = friday
        self.saturday = saturday
        self.sunday = sunday


    def weekly_total(self):
        self.total_weekly_hours = self.monday + self.tuesday + self.wednesday + self.thursday + self.friday + self.saturday + self.sunday        
        self.emp_name()
        print "\n  Your hours this week are:", self.total_weekly_hours,"\n"


    def emp_name(self):
        print "\n  Current employee is: ",self.name


    def create_employee(self):
        self.name = raw_input("Enter new employee name")
        self.pay = input("Enter pay rate")
        self.monday = raw_input("Enter monday hours")
        self.tuesday = raw_input("tuesday hours?")
        self.wednesday = raw_input("wed hours?")
        self.thursday = raw_input("Thursday hours?")
        self.friday = raw_input("Friday hours?")
        self.saturday = raw_input("saturday hours?")
        self.sunday = raw_input("sunday hours?")
        self.object_name = raw_input("Name your object")

        self.object_name = employee(self.name,self.pay,self.monday,self.tuesday,self.wednesday,self.thursday,self.friday,self.saturday,self.sunday)
        print self.name, " was created"

解决方案
Your current code has a neverending loop in it, as __init__ and create_employee call each other. You take arguments for all the attributes in the initialiser, then ignore them and ask for user input, which you pass to the initialiser for a new object, which ignores it and... 

I think what you want is a structure more like:
class Employee(object): # PEP-8 name

    def __init__(self, name, pay, hours):
        # assign instance attributes (don't call from_input!)

    def __str__(self):
        # replaces emp_name, returns a string 

    @property
    def weekly_total(self):
        return sum(self.hours)

    @classmethod
    def from_input(cls):
        # take (and validate and convert!) input
        return cls(name, pay, hours)
Which you can use like:
employee = Employee("John Smith", 12.34, (8, 8, 8, 8, 8, 0, 0))
print str(employee) # call __str__
Or: 
employee = Employee.from_input()
print employee.weekly_total # access property
Note that rather than having separate instance attributes for the different days, I've assumed a single list/tuple of hours for each day. If the day names are important, use a dictionary {'Monday': 7, ...}. Remember that all raw_input is a string, but you probably want hours and pay as floats; for more on input validation, see here. 

                        
这篇关于尝试通过用户的输入创建对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！