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import os
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import time
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class Problem: # 定义试题信息的类
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def __init__(self, num, question, choice_a, choice_b, choice_c, choice_d, answer):
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self.num = num
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self.question = question
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self.choice_a = choice_a
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self.choice_b = choice_b
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self.choice_c = choice_c
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self.choice_d = choice_d
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self.answer = answer
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class Student: # 定义学生信息的类
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def __init__(self, name, user_name, user_password, grade, usetime):
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self.name = name
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self.user_name = user_name
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self.user_password = user_password
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self.grade = grade
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self.usetime = usetime
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# 基本功能都由这个类的方法实现
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class Manage:
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def __init__(self):
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self.StudentInfo = []
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self.ProblemInfo = []
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@staticmethod
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def main_menu():
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print("***************")
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print("1.管理员端登录")
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print("2.学生端登录")
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print("3.注册学生端账户")
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print("4.退出系统")
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print("***************")
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@staticmethod
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def administrator_menu():
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print("***************")
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print("1.录入试题信息")
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print("2.查看学生信息")
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print("3.排名学生成绩")
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print("4.查看试题信息")
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print("5.分析总体答题情况")
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print("6.删除学生信息")
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print("7.删除试题信息")
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print("8.返回上级")
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print("***************")
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@staticmethod
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def student_menu():
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print("***************")
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print("1.开始答题")
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print("2.返回上级")
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print("***************")
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@staticmethod
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def log_in():
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psw = int(input("请输入管理员密码"))
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if psw == 123456:
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Manage.administrator_menu()
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while 1:
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operate_administrator = int(input("请输入要选择的操作"))
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if operate_administrator == 1:
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Manage.add_problem(start)
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Manage.administrator_menu()
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if operate_administrator == 2:
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Manage.show_student(start)
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if operate_administrator == 3:
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Manage.rank_student(start)
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if operate_administrator == 4:
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Manage.show_problem(start)
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if operate_administrator == 5:
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Manage.analysis_student(start)
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if operate_administrator == 6:
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Manage.del_student(start)
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if operate_administrator == 7:
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Manage.del_problem(start)
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if operate_administrator == 8:
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Manage.main_menu()
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return
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else:
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print("账号或密码错误，已返回上级！")
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Manage.main_menu()
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def register(self):
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print("***************")
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new_student = Student(name=input("输入你的用户名"),
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user_name=input("输入你的账号"),
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user_password=input("输入你的密码"),
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grade="暂无成绩",
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usetime="暂无信息")
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temp = {"用户名": new_student.name, "账号": new_student.user_name, "密码": new_student.user_password,
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"成绩": new_student.grade, "答题时间": new_student.usetime}
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# 这里的new_student不能直接传入列表，要放在一个字典里把数据”打包“过去
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self.StudentInfo.append(temp)
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print("注册成功！")
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self.save_information()
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self.main_menu()
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def student_login(self):
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print("***************")
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temp1 = input("请输入你的账号")
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temp2 = input("请输入你的密码")
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if len(self.StudentInfo) == 0:
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# 如果学生信息为空，说明还没有账号注册，当作账号或密码错误处理
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print("账号或密码错误！已返回上级")
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self.main_menu()
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return
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for stu in self.StudentInfo: # 循环遍历列表判断账号和密码是否正确
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if stu["账号"] == temp1 and stu["密码"] == temp2:
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print("登录成功！欢迎你%s同学" % (stu["用户名"]))
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self.student_menu()
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while 1:
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operate_student = int(input("请输入要选择的操作"))
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if operate_student == 1:
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self.test_begin(stu["用户名"])
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self.main_menu()
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return
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if operate_student == 2:
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self.main_menu()
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return
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else:
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print("账号或密码错误！已返回上级")
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self.main_menu()
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def add_problem(self):
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new_problem = Problem(num=input("输入题号"),
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question=input("输入题目"),
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choice_a=input("输入选项A"),
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choice_b=input("输入选项B"),
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choice_c=input("输入选项C"),
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choice_d=input("输入选项D"),
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answer=input("输入正确答案"))
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temp = {"题号": new_problem.num, "题目": new_problem.question, "选项A": new_problem.choice_a,
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"选项B": new_problem.choice_b, "选项C": new_problem.choice_c, "选项D": new_problem.choice_d,
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"正确答案": new_problem.answer}
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self.ProblemInfo.append(temp)
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# 和学生信息一样，试题信息也要打包在一个字典里面后添加到列表
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print("录入成功！")
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self.save_information()
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def del_student(self):
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user_name = input("输入要删除的学生账号")
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index = 0
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for stu in self.StudentInfo:
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if stu["账号"] == user_name:
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del self.StudentInfo[index]
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self.save_information()
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print("删除成功")
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self.administrator_menu()
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return
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index += 1
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print("未查询到学生信息!")
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self.administrator_menu()
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return
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def del_problem(self):
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num = input("输入要删除的题目题号")
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index = 0
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for pro in self.ProblemInfo:
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if pro["题号"] == num:
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del self.ProblemInfo[index]
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self.save_information()
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print("删除成功")
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self.administrator_menu()
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return
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index += 1
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print("未查询到试题信息!")
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self.administrator_menu()
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return
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def show_student(self):
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if len(self.StudentInfo) == 0:
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print("暂无学生信息")
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self.administrator_menu()
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return
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for stu in self.StudentInfo:
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print(stu)
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input("按任意键继续")
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self.administrator_menu()
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return
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def show_problem(self):
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if len(self.ProblemInfo) == 0:
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print("暂无试题信息")
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for pro in self.ProblemInfo:
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print("%s:%s\n"
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"A.%s\n"
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"B.%s\n"
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"C.%s\n"
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"D.%s\n"
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"正确答案：%s"
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% (pro["题号"], pro["题目"], pro["选项A"], pro["选项B"], pro["选项C"], pro["选项D"],
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pro["正确答案"]))
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input("按任意键继续")
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self.administrator_menu()
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return
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def test_begin(self, name):
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# 答题功能的主要功能由循坏遍历列表和time模板实现
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if len(self.ProblemInfo) == 0:
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print("暂无试题信息")
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self.student_menu()
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return
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grade = 0
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print("Test Begin!")
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start_time = time.time()
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for pro in self.ProblemInfo:
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print("%s:%s\n"
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"A.%s\n"
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"B.%s\n"
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"C.%s\n"
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"D.%s\n"
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% (pro["题号"], pro["题目"], pro["选项A"], pro["选项B"], pro["选项C"], pro["选项D"]))
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answer = input("输入你的答案")
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if answer == pro["正确答案"]:
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grade += 5
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end_time = time.time()
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for stu in self.StudentInfo:
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if stu["用户名"] == name:
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stu["成绩"] = str(grade)
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stu["答题时间"] = str(int((end_time - start_time)))
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break
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print("Test Over!\n你的成绩是%d分,用时%d秒" % (grade, end_time - start_time))
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self.save_information()
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return
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def rank_student(self):
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if len(start.StudentInfo) == 0:
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print("暂无学生信息")
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return
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tool = self.StudentInfo
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for del_zero in tool:
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if del_zero["成绩"] == "暂无成绩":
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del_zero["成绩"] = -1
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temp = sorted(tool, key=lambda x: int(x["成绩"]), reverse=True)
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rank = 1
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for stu in temp:
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if stu["成绩"] == -1:
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stu["成绩"] = "暂无成绩"
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print("第%d名：%s %s分 用时%s秒" % (rank, stu["用户名"], stu["成绩"], stu["答题时间"]))
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rank += 1
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input("按任意键继续")
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self.administrator_menu()
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return
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def analysis_student(self):
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# 分析参加考试的人数，平均分
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if len(self.StudentInfo) == 0:
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print("暂无答题信息")
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self.administrator_menu()
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return
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print("本次测试有%d道题目" % (len(self.ProblemInfo)))
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print("满分%d分" % (len(self.ProblemInfo) * 5))
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student_num = 0
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total = 0
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for stu in self.StudentInfo:
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if stu["成绩"] == "暂无成绩":
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continue
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total += int(stu["成绩"])
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student_num += 1
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if student_num == 0:
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print("暂无答题信息")
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self.administrator_menu()
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return
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print("参与测试%d人" % student_num)
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print("平均分：%0.2f" % (total / student_num))
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input("按任意键继续")
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self.administrator_menu()
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return
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def save_information(self): # 以字符串的数据类型向文件中写入
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with open("StudentInfo.txt", "w", encoding="utf_8") as fp:
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for stu in self.StudentInfo:
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fp.write(stu["用户名"])
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fp.write(",")
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fp.write(stu["账号"])
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fp.write(",")
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fp.write(stu["密码"])
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fp.write(",")
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fp.write(stu["成绩"])
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fp.write(",")
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fp.write(stu["答题时间"])
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fp.write(",")
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fp.close() # 写入的时候数据之间用”,“分割开,读取的时候再用split函数分割分别读取
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with open("ProblemInfo.txt", "w", encoding="utf_8") as fp1:
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for pro in self.ProblemInfo:
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fp1.write(pro["题号"])
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fp1.write(",")
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fp1.write(pro["题目"])
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fp1.write(",")
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fp1.write(pro["选项A"])
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fp1.write(",")
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fp1.write(pro["选项B"])
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fp1.write(",")
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fp1.write(pro["选项C"])
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fp1.write(",")
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fp1.write(pro["选项D"])
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fp1.write(",")
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fp1.write(pro["正确答案"])
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fp1.write(",")
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fp1.close()
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return
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def read_information(self):
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if not os.path.exists("StudentInfo.txt"):
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print("暂无学生信息，跳过读取！")
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else:
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with open("StudentInfo.txt", "r", encoding="utf_8") as fp:
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stu = fp.read()
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stu = stu.split(",") # 文件的字符串split后变成列表类型，再通过列表循环读取，每次读取一批数据打包成一个字典，再append到程序当前存储信息的列表中
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stu.pop()
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for i in range(len(stu) // 5):
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stu_pass = {"用户名": stu[5 * i + 0],
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"账号": stu[5 * i + 1],
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"密码": stu[5 * i + 2],
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"成绩": stu[5 * i + 3],
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"答题时间": stu[5 * i + 4]}
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self.StudentInfo.append(stu_pass)
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fp.close()
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print("学生信息读取成功！")
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if not os.path.exists("ProblemInfo.txt"):
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print("暂无试卷信息，跳过读取！")
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else:
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with open("ProblemInfo.txt", "r", encoding="utf_8") as fp1:
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pro = fp1.read()
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pro = pro.split(",")
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pro.pop()
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for j in range(len(pro) // 7):
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pro_pass = {"题号": pro[7 * j + 0],
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"题目": pro[7 * j + 1],
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"选项A": pro[7 * j + 2],
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"选项B": pro[7 * j + 3],
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"选项C": pro[7 * j + 4],
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"选项D": pro[7 * j + 5],
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"正确答案": pro[7 * j + 6]}
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self.ProblemInfo.append(pro_pass)
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fp1.close()
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print("试卷信息读取成功！")
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start = Manage()
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