Python魔法函数_python魔法函数开发-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_38858860/article/details/119145935

本文介绍了一个简单的Python类Company的实现，该类通过不同的魔法方法如`__init__`,`__getitem__`,和`__str__`来展示如何创建、索引和打印包含员工列表的对象。通过这些方法，可以方便地管理公司员工的信息。

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class Company(object):
    def __init__(self,employee_list):
        self.employee=employee_list



company=Company(['tim','bob','janw'])

emploee=company.employee
for em in emploee:
    print(em)
    '''
    tim
    bob
    janw
    
    '''

#魔法函数
class Company(object):
    def __init__(self, employee_list):
        self.employee = employee_list

    def __getitem__(self, item):
        # item=index
        return self.employee[item]


company = Company(['tim', 'bob', 'janw'])

# emploee=company.employee
#for em in emploee:
for em in company:
    print(em)
    '''
    tim
    bob
    janw

    '''

# 魔法函数  __str__
class Company(object):
    def __init__(self, employee_list):
        self.employee = employee_list

    def __str__(self):
        # item=index
        return ",".join(self.employee)


company = Company(['tim', 'bob', 'janw'])
print(company )
'''tim,bob,janw'''

# 魔法函数  __str__
class Company(object):
    def __init__(self, employee_list):
        self.employee = employee_list

    def __repr__(self):
        # item=index
        return ",".join(self.employee)


company = Company(['tim', 'bob', 'janw'])
print(company)

'''tim,bob,janw'''