Python---进阶---函数式编程---按照权重排序

一、

权重是100

价格占的权重是40%，销量占的权重是17%，评级站的权重是13%，评论占的权重是30%

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goods = [{"name":"good1", "price":200, "sales":100, "stars":5, "comments":400},
{"name":"good2", "price":300, "sales":120, "stars":4, "comments":500},
{"name":"good3", "price":500, "sales":3000, "stars":2, "comments":199},
{"name":"good4", "price":1288, "sales":1288, "stars":5, "comments":398},
{"name":"good5", "price":899, "sales":899, "stars":5, "comments":2000}]

print(goods)

#sorted()
def my_sorted(arg):
    price = arg["price"]
    sales = arg['sales']
    star = arg['stars']
    comment = arg['comments']
    data = price*0.4+sales*0.17+star*0.13+comment*0.3
    return data
   
print(sorted(goods, key=my_sorted))

 

r = sorted(goods, key = lambda x: x['price'] * 0.4 + x['sales']*0.13 + x['comments']*0.13, reverse=True)

print(r)

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二、

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