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msg = """********************************
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欢迎使用学生管理系统
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请选择你想要进行的操作
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1.新建学生信息
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2.显示全部信息
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3.查询学生信息
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4.删除学生信息
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5.修改学生信息
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0.退出系统
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********************************"""
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student_info = [
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{"姓名": '张三','语文': 80,'数学': 80,'外语': 80,'总分': 240},
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{"姓名": '李四','语文': 80,'数学': 80,'外语': 80,'总分': 240},
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]
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account = input('请输入您的账号：')
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password = input('请输入您的密码：')
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if account == 'guoshenghui' and password == '21412030118':
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print('登陆成功，欢迎使用')
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print(msg) #输出函数
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while True: #为真死循环
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word = input("请输入想要进行的操作：")
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if word == '1':
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print("新建学生信息")
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name = input('请输入学生姓名：')
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chinese = input('请输入语文分数：')
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math = input('请输入数学分数：')
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english = input('请输入外语分数：')
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sum = int(chinese) + int(math) + int(english)
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print(sum)
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dit = {
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'姓名': name,
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'语文': chinese,
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'数学': math,
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'外语': english,
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'总分': sum,
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}
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student_info.append(dit)
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elif word == '2':
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print("显示全部信息")
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print('姓名\t\t语文\t\t数学\t\t外语\t\t总分')
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for student in student_info:
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print(
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student['姓名'] + '\t\t' +
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str(student['语文'])+ '\t\t' +
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str(student['数学'])+ '\t\t' +
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str(student['外语'])+ '\t\t' +
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str(student['总分'])+ '\t\t'
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)
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elif word == '3':
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print("查询学生信息")
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name = input('请输入您想要查询学生的姓名：')
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for student in student_info:
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if name == student['姓名']:
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print('姓名\t\t语文\t\t数学\t\t外语\t\t总分')
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print(
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student['姓名'] + '\t\t' +
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str(student['语文']) + '\t\t' +
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str(student['数学']) + '\t\t' +
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str(student['外语']) + '\t\t' +
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str(student['总分']) + '\t\t'
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)
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break
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else:
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print('没有该学生的信息')
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elif word == '4':
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print("删除学生信息")
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name = input('请输入您想要删除学生的姓名：')
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for student in student_info:
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if name == student['姓名']:
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print('姓名\t\t语文\t\t数学\t\t外语\t\t总分')
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print(
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student['姓名'] + '\t\t' +
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str(student['语文']) + '\t\t' +
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str(student['数学']) + '\t\t' +
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str(student['外语']) + '\t\t' +
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str(student['总分']) + '\t\t'
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)
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result = input('是否确认删除该学生（y/n)：')
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if result == 'y':
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student_info.remove(student)
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elif result == 'n':
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continue
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break
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else:
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print('没有该学生信息，请确认信息在删除')
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elif word == '5':
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print("修改学生信息")
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name = input('请输入您想要修改学生的姓名：')
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for student in student_info:
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if name == student['姓名']:
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print('姓名\t\t语文\t\t数学\t\t外语\t\t总分')
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print(
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student['姓名'] + '\t\t' +
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str(student['语文']) + '\t\t' +
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str(student['数学']) + '\t\t' +
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str(student['外语']) + '\t\t' +
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str(student['总分']) + '\t\t'
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)
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result = input('是否确认修改该学生（y/n)：')
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if result == 'y':
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name = input('请输入学生姓名：')
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chinese = input('请输入语文分数：')
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math = input('请输入数学分数：')
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english = input('请输入外语分数：')
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sum = int(chinese) + int(math) + int(english)
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print(sum)
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student['姓名'] = name
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student['语文'] = chinese
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student['数学'] = math
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student['外语'] = english
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student['总分'] = sum
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elif result == 'n':
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continue
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break
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else:
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print('未找到该学生信息，请先确认该学生是否存在再进行修改')
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elif word == '0':
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print("退出系统，欢迎下次使用")
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break
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elif account == 'xs' and password == '12345':
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while True:
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name = input('请输入您想要查询学生的姓名(输入0退出)')
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if name == '0':
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break
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for student in student_info:
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if name == student['姓名']:
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print('姓名\t\t语文\t\t数学\t\t外语\t\t总分')
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print(
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student['姓名'] + '\t\t' +
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str(student['语文']) + '\t\t' +
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str(student['数学']) + '\t\t' +
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str(student['外语']) + '\t\t' +
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str(student['总分']) + '\t\t'
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)
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break
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else:
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print('没有该学生的信息')
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else:
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print('账号或者密码输入错误')
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