# 楼上答案自动生成的吧有问题啊 复制修改如下
#coding:utf-8
import random
import string
import datetime
import time
#from icecream import ic
random.seed(1)
#1.构造15个学生键值对{姓名:分数}, 存入学生字典,如:dct。姓名用'A', 'B', .....'O' 对应,分数为 [35,100]之间的随机整数,输出学生字典
dct = {}
for i in string.ascii_uppercase[:15]:
dct[i] = random.randint(35, 100)
print(dct)
#2.按照学生成绩降序排列输出字典
a1 = sorted(dct.items(), key=lambda x: x[1],reverse=True)
print(a1)
#3.计算学生成绩平均分、最大值、最小值
scores = list(dct.values())
print("---", scores)
print('平均分:',sum(scores)/len(scores))
print('最大值:',max(scores))
print('最小值:',min(scores))
#4.统计不及格人数的个数
num = 0
for i in scores:
if i < 60:
num += 1
print(f"不及格人数:{num}")
#5.输入学生名字,如W,输出学生对应的分数
def check_score():
check_num = 0
while True:
name = input("请输入要查询的学生姓名:")
if name not in dct:
print('请输入正确的学生名字')
check_num += 1
continue
else:
score = dct[name]
avg_score = sum(scores)/len(scores)
if score > avg_score:
print("该生成绩属于上等水平")
elif score == avg_score:
print("该生成绩属于中等水平")
else:
print("该生成绩属于下等水平")
print(f"查询了{check_num+1}次")
break
t = time.time()
check_score()
print(f'耗时:{time.time() - t:.8f}s')