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day08字典作业

1.声明一个字典保存一个学生的信息，学生信息中包括: 姓名、年龄、成绩(单科)、电话

student1 = {'name':'阿毛', 'age':20, 'score':60, 'tel':'10086'} student2 = {'name':'阿建', 'age':18, 'score':60, 'tel':'10088'} student3 = {'name':'阿苟', 'age':21, 'score':70, 'tel':'1008611'} student4 = {'name':'阿蛋', 'age':22, 'score':40, 'tel':'10001'} student5 = {'name':'阿旺', 'age':25, 'score':80, 'tel':'10000'} student6 = {'name':'阿茶', 'age':16, 'score':90, 'tel':'1010'}

2.声明一个列表，在列表中保存6个学生的信息(6个题1中的字典)
students = [student1, student2, student3, student4, student5, student6]#a.统计不及格学生的个数 #b.打印不及格学生的名字和对应的成绩 #c.统计未成年学生的个数 #d.打印手机尾号是8的学生的名字 #e.打印最高分和对应的学生的名字 #f.将列表按学生成绩从大到小排序(挣扎一下，不行就放弃)count_fail = 0#不及格的学生人数 fail_students = {}#不及格学生字典 count_underage = 0#未成年学生人数 tel8_students = []#尾号为8的学生集合 max_score = 0#最高分 min_score = 0#最低分 max_score_student = ''#最高分学生姓名for student in students: if student['score'] <60: fail_students[student['name']] = student['score'] count_fail += 1 if student['age'] < 18: count_underage += 1 if student['tel'][-1] == '8': tel8_students.append(student['name']) if max_score < student['score']: max_score = student['score'] max_score_student = student['name']print("不及格学生的个数为:", count_fail) print("不及格的学生是:", fail_students) print("未成年学生的个数是:", count_underage) print("手机尾号是8的学生是:", tel8_students) print("最高成绩是%s同学的%.1f分" % (max_score_student, max_score))# students.sort(key=lambda x:x['age']) print("按成绩从小到大排序为:") for i in range(len(students)-1): for j in range(i+1, len(students)-1): if students[j]['score']

3.尝试实现学生管理系统的界面(见视频)
home_page = """ =======学生管理系统======= 1.查看学生信息 2.添加学生信息 0.退出 ======================== """student_info_page = """ ========学生信息========= %s 1. 查看 2. 添加 3. 删除 0. 返回 ======================= """change_stu_info = """ =======修改学生信息======"""add_student_page = """ =======添加学生========== 请输入学生信息1. 保存 2. 返回 ======================= """students = []#一个保存所有学生信息的列表while True: print(home_page)#启动程序时打印学生管理系统首页 num1 = int(input())#第一次选择输入num1 if num1 == 1: if students == []: print(student_info_page % "暂无学生信息") #没有学生信息时打印默认画面 else: print(student_info_page % students)#有学生信息时打印 num2 = int(input())#第二次选择输入num2 # if num2 == 1:#查看某个学生的信息 #stu_name = input("请输入你要查看的学生的姓名:") #if stu_name in students #students['姓名'] = input() #students['出生日期'] = input() #students['籍贯'] = input() #students['手机号码'] = input() #students['学号'] = input() if num2 == 2: print(add_student_page)#打印添加学生信息页面 name = input("姓名:") birth = input("出生日期:") position = input("籍贯:") tel = input("手机号码:") stu_num = input("学号:")print("是否保存") save = input()#输入是否保存 if save == "是" or "yes": student = {"姓名": name, "出生日期": birth, \ "籍贯": position, "手机号码": tel, "学号": stu_num} students.append(student) print("保存成功") print("按0返回") save = input() if save == "0": continue else: continue if num2 == 0: continue if num1 == 2: print(add_student_page) student['姓名'] = input("姓名:") student['出生日期'] = input("出生日期:") student['籍贯'] = input("籍贯:") student['手机号码'] = input("手机号码:") student['学号'] = input("学号:") print("是否保存") save = input() if save == "是" or "yes": student = {"姓名": name, "出生日期": birth, \ "籍贯": position, "手机号码": tel, "学号": stu_num} students.append(student) print("保存成功") print("按0返回") save = input() if save == "0": continue else: continue if num1 == 0: print("谢谢使用") break

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