学生成绩管理系统python课程设计,简易学生成绩管理系统Python

# -*- coding: utf-8 -*-

import random

#成绩管理系统

score={}

#录入成绩

score={"数学":{"小明":90,"刚子":80,"学霸":90},

"语文":{"小明":92,"刚子":81,"学霸":95},

"英语":{"小明":94,"刚子":83,"学霸":96},

"物理":{"小明":random.randint(60,100),"刚子":random.randint(60,100),"学霸":random.randint(80,100)},

"化学":{"小明":random.randint(60,100),"刚子":random.randint(60,100),"学霸":random.randint(80,100)},

"生物":{"小明":random.randint(60,100),"刚子":random.randint(60,100),"学霸":random.randint(80,100)},

}

#查询

'''

print("按照科目查询：")

course=input("请输入科目：\n")

print(score[course])

print("按照科目和姓名查询：")

course=input("请输入科目：\n")

stu_name=input("请输入学生姓名：\n")

print(score[course][stu_name])

print("按照姓名查询：")

stu_name=input("请输入姓名：\n")

for k in ["数学","语文","英语","物理","化学","生物"]:

print(stu_name,':',score[k][stu_name])

#统计

sum=0

print("按照姓名统计：")

stu_name=input("请输入姓名：\n")

for k in ["数学","语文","英语","物理","化学","生物"]:

sum+=score[k][stu_name]

print(stu_name,'的总分:',sum)

print(stu_name,'的平均分:',sum/6)

#输出所有学生总分和平均分

print("输出所有学生总分和平均分\n")

course_list=["数学","语文","英语","物理","化学","生物"]

stu_list=["小明","刚子","学霸"]

for stu in stu_list:

total=0

for cou in course_list:

total+=score[cou][stu]

print(stu,"总分：",total," ",stu,"平均分：",total/6)

'''

#所有学生总分排名

print("输出所有学生总分排名\n")

total_dict={}

course_list=["数学","语文","英语","物理","化学","生物"]

stu_list=["小明","刚子","学霸"]

#？？

for stu in stu_list:

total=0 #？？

for cou in course_list:

total+=score[cou][stu]

total_dict[stu]=total#？？

#用匿名函数lambda函数获取字典的值

jieguo=[]

jieguo=sorted(total_dict.items(),key=lambda x:x[1],reverse=True)

print(jieguo)

#用operator.itemgetter函数获取字典的值

import operator

print(sorted(total_dict.items(), key=operator.itemgetter(1),reverse=True))

总结

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