eq方法

class A:
    def __init__(self,name,age):
        self.name = name
        self.age = age

    def __eq__(self, other):
        if self.name == other.name and self.age ==other.age:
            return True

a = A("dudu",99)
aa = A("dudu",99)
print(a,aa)
print(a == aa)

面试题

# 一个类，对象的属性姓名，性别，年龄，部门
# 员工管理系统
# 内部转岗 python开发 - go开发
# 姓名，性别，年龄，新的部门

# 1000个员工
# 如果员工性别和姓名相同，这是一个人


class Employee:
    def __init__(self,name,age,sex,partment):
        self.name = name
        self.age = age
        self.sex = sex
        self.partment = partment

    def __hash__(self):
        return hash("%s%s" %(self.name,self.sex))

    def __eq__(self, other):
        if self.name == other.name and self.sex == other.sex:
            return True

employee_lst = []
for i in range(200):
    employee_lst.append(Employee("yan",i,"male","py"))

for i in range(200):
    employee_lst.append(Employee("liu",i,"male","py"))

for i in range(200):
    employee_lst.append(Employee("jie",i,"male","py"))

for i in range(200):
    employee_lst.append(Employee("yu",i,"male","py"))

for i in range(200):
    employee_lst.append(Employee("dudu",i,"male","py"))

# print(employee_lst)

print(set(employee_lst))

# set去重机制  先调用hash，再调用eq，eq不是每次都会触发，只有hash值相等才会触发