def get_house_by_max_total_price(self):
# 写法1：简单但不灵活
# 重写模型的__gt__方法
# return max(self.__list_houses)
# 写法2： 内置高阶函数(性能高)
# return max(self.__list_houses,key = lambda house:house.total_price)
# 写法3： 自定义高阶函数(调试方便)
return IterableHelper.get_max(self.__list_houses,
lambda house: house.total_price)
print(IterableHelper.find_single(list_wifes,lambda item:item.name == "双儿").__dict__)
print(IterableHelper.get_count(list_wifes, lambda item:item.face_score > 90))
# 练习4：
# 需求1：在老婆列表中查找所有老婆的姓名与颜值
for item in IterableHelper.select(list_wifes,lambda wife:(wife.name,wife.face_score)):
print(item)
# 需求2：在老婆列表中查找所有老婆的身高、体重、颜值
for item in IterableHelper.select(list_wifes,lambda wife:(wife.height,wife.weight,wife.face_score)):
print(item)
# 练习5：
# 需求1：在老婆列表中查找颜值最高的老婆
print(IterableHelper.get_max(list_wifes, lambda element: element.face_score).__dict__)
# 需求2：在老婆列表中查找财产最大的老婆
print(IterableHelper.get_max(list_wifes, lambda element: element.money).__dict__)
# 练习6：
# 需求1：根据身高对老婆列表进行升序排列
# 需求2：根据体重对老婆列表进行升序排列
IterableHelper.order_by(list_wifes,lambda w:w.height)
IterableHelper.order_by(list_wifes,lambda w:w.weight)
for item in list_wifes:
print(item.__dict__)
# 练习7：
# 需求1：累加老婆们的体重
# 需求2：累加老婆们的财产
print(IterableHelper.sum_value(list_wifes, lambda w: w.money))
print(item)
# 1. map映射：
for item in map(lambda item: item.eid, list_employees):
print(item)
# 需求：获取部门编号是9001的所有员工
for item in IterableHelper.find_all(list_employees,
lambda emp: emp.did == 9001):
print(item.__dict__)
# 2. filter过滤：
for item in filter(lambda emp: emp.did == 9001, list_employees):
print(item.__dict__)
max_value = IterableHelper.get_max(list_employees,
lambda element: element.money)
print(max_value.__dict__)
# 3.max 最大 min 最小
max_value = max(list_employees, key=lambda element: element.money)
print(max_value.__dict__)
# 4.
# 自定义排序函数内部修改了列表,所以没有提供返回值
# IterableHelper.order_by(list_employees,lambda item:item.did)
# print(list_employees)
# 内置sorted排序,返回排好序的新列表
# 升序
new_list = sorted(list_employees, key=lambda item: item.did)
# 降序 reverse=True
# count = IterableHelper.delete_all(list_employee,lambda emp:emp.money < 15000) # print(count) count = IterableHelper.delete_all(list_employee, lambda item: item.did == 9005) print(count) # def get_max01(): # max_value = list_employee[0] # for i in range(1, len(list_employee)): # if max_value.money < list_employee[i].money: # max_value = list_employee[i] # return max_value # # def get_max02(): # max_value = list_employee[0] # for i in range(1, len(list_employee)): # if max_value.eid < list_employee[i].eid: # max_value = list_employee[i] # return max_value max = IterableHelper.get_max(list_employee, lambda item: item.money) print(max.__dict__) max = IterableHelper.get_max(list_employee, lambda item: item.eid) print(max.__dict__) # 在列表中根据薪资升序排列 IterableHelper.ascending_order(list_employee, lambda emp: emp.money) IterableHelper.ascending_order(list_employee, lambda emp: emp.eid) print(list_employee)
def get_count02():
count = 0
for phone in list_phones:
if phone.price > 7000:
count += 1
return count
"""
print(IterableHelper.get_count(list_phones, lambda p: p.color == "白色"))
# [先用] -- 做通用函数时,调用 max_value.price 的函数
# [后做] -- 用通用函数时,做lambda代替 max_value.price 的函数
"""
def get_max01():
max_value = list_phones[0]
for i in range(1, len(list_phones)):
if max_value.price < list_phones[i].price:
max_value = list_phones[i]
return max_value
def get_max02():
max_value = list_phones[0]
for i in range(1, len(list_phones)):
if len(max_value.brand) < len(list_phones[i].brand):
max_value = list_phones[i]
return max_value
"""
re = IterableHelper.get_max(list_phones, lambda element: element.price)
re = IterableHelper.get_max(list_phones, lambda element: len(element.brand))
print(re.__dict__)
self.name = name
self.money = money
# 员工列表
list_employees = [
Employee(1001, 9002, "师父", 60000),
Employee(1002, 9001, "孙悟空", 50000),
Employee(1003, 9002, "猪八戒", 20000),
Employee(1004, 9001, "沙僧", 30000),
Employee(1005, 9001, "小白龙", 15000),
]
"""
def get_max01():
max_value = list_employees[0]
for i in range(1,len(list_employees)):
if max_value.money < list_employees[i].money:
max_value = list_employees[i]
return max_value
def get_max02():
max_value = list_employees[0]
for i in range(1,len(list_employees)):
if max_value.eid < list_employees[i].eid:
max_value = list_employees[i]
return max_value
"""
emp = IterableHelper.get_max(list_employees, lambda item: item.money)
print(emp.__dict__)
"""
3. 使用IterableHelper完成下列功能
list01 = [3,43,4,56,6,76,87,9]
-- 在list01中找出所有大于10的数字
-- 在list01中找出第一个偶数
-- 在list01中找出最大的数字
-- 对list01进行升序排列
"""
from common.iterable_tools import IterableHelper
list01 = [3, 43, 4, 56, 6, 76, 87, 9]
for item in IterableHelper.find_all(list01, lambda number: number > 10):
print(item)
result = IterableHelper.find_single(list01, lambda number: number % 2 == 0)
print(result)
result = IterableHelper.get_max(list01, lambda number: number)
print(result)
IterableHelper.order_by(list01,lambda number: number)
print(list01)
Commodity(1002, "倚天剑", 10000),
Commodity(1003, "金箍棒", 52100),
Commodity(1004, "口罩", 20),
Commodity(1005, "酒精", 30),
]
for item in map(lambda item: (item.name, item.price), list_commodity_infos):
print(item)
for item in IterableHelper.select(list_commodity_infos, lambda item:
(item.name, item.price)):
print(item)
for item in filter(lambda item: item.price < 10000, list_commodity_infos):
print(item.__dict__)
for item in IterableHelper.find_all(list_commodity_infos,
lambda item: item.price < 10000):
print(item)
new_list = sorted(list_commodity_infos,
key=lambda item: item.price,
reverse=True)
print(new_list)
tuple01 = ([1, 1], [2, 2, 2], [3, 3, 3])
print(max(tuple01, key=lambda item: len(item)))
print(IterableHelper.get_max(tuple01, lambda item: len(item)))
#
# def condition01(item):
# return item.name == "苏荃"
#
# def condition02(item):
# return item.face_score == 100
#
# def find(func):
# for item in list_wifes:
# # if item.face_score == 100:
# if func(item):
# return item
result = IterableHelper.find(list_wifes, lambda item: item.name == "苏荃")
print(result.__dict__)
for item in IterableHelper.select(list_wifes, lambda wife: wife.name):
print(item)
for item in IterableHelper.select(list_wifes, lambda wife:
(wife.name, wife.face_score)):
print(item)
result = IterableHelper.get_max(list_wifes, lambda wife: wife.money)
print(result.__dict__)
IterableHelper.order_by(list_wifes, lambda wife: wife.face_score)
for item in list_wifes:
print(item.__dict__)
def get_max_price(self):
return IterableHelper.get_max(self.__list_houses, lambda item: item.total_price)