# -*- coding: utf-8 -*-

class Student:

    def __init__(self, mand, math, soc, nat, eng, home_income, name = "小明"):
        self.name = name
        self.mand = mand
        self.math = math
        self.soc = soc
        self.nat = nat
        self.eng = eng
        self.__home_income = home_income
        
    def sum(self):
        """
        計算各科總分
        """
        return self.mand + self.math + self.soc + self.nat + self.eng
    
    def ave(self):
        """計算個人平均分數"""
        return self.sum()/5.0

    def datainfo(self):
        """印出Student物件內容"""
        print(self.name, '國語',self.mand, 
              '數學',self.math, '社會',self.soc,
              '自然',self.nat, '英文',self.eng)
     
    def __str__(self):
        
        return ("{} '國語' {} '數學' {} '社會' {} '自然' {} '英文' {}"
               .format(self.name, self.mand, self.math, self.soc, self.nat, self.eng))      
    
    __repr__ = __str__
    
    """
    def setMath(self, math):
        if math < 0:
            self.math = 0
        else:
            self.math = math
    """
    
    def setMath(self, math):
        assert math >= 0, 'math不得小於0'
        self.math = math
        
    def getMath(self):
        return self.math
    
    def setIncome(self, income):
        assert income >= 0, 'income不得小於0'
        self.__home_income = income
    
    def getIncome(self):
        return self.__home_income
    

    def __add__(self, inc):
        return self.math + inc