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@ -1,2 +1,132 @@
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# management
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# 定义一个空列表，用来存放学生信息
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class_info = []
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def print_menu():
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print("-------------------")
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print("学生管理系统 V1.0")
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print(" 1:添加学生")
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print(" 2:删除学生")
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print(" 3:修改学生")
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print(" 4:查询学生")
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print(" 5:显示所有学生")
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print(" 6:退出系统")
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print("-----------------")
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# 完成添加学生信息的函数
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def add_student():
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# 声明使用全局变量 class_info
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global class_info
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# 从键盘输入 学生 姓名 年龄 成绩
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name = input("请输入学生的姓名：>>")
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age = int(input("请输入学生的年龄：>>"))
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score = int(input("请输入学生的成绩：>>"))
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# 对数据进行验证，验证学生是否有重名情况
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for student in class_info:
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# 发生重名现象
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if student["name"] == name:
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print("您输入的学生已经存在~！")
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return
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# 将学生信息添加到班级信息中
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student = {
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"name": name,
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"age": age,
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"score": score
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}
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class_info.append(student)
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print("恭喜您，添加学生信息成功 ！")
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return None
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# 删除学生信息
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def del_student():
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global class_info
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# 根据学生姓名删除学生
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name = input("请输入您要删除的学生的姓名：>>")
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# 在班级信息中，找到想要删除的学生
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for student in class_info:
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if student["name"] == name:
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# 对列表进行删除
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class_info.remove(student)
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print("恭喜您删除成功")
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return 0
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# 遍历完 程序走到这里证明学生不存在
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print("您输入的学生不存在，删除失败~~")
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return None
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# 修改学生信息
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def modify_student():
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global class_info
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# 通过学生姓名，来找到学生
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name = input("请输入需要修改的学生姓名：>>>")
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# 遍历班级信息，找到需要修改的学生
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for student in class_info:
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# 找到想要修改的学生信息
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if student["name"] == name:
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student["name"] = input("请输入修改后的学生姓名: >>>")
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student["age"] = int(input("请输入修改后的学生年龄：>>>"))
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student["score"] = int(input("请输入修改后的学生成绩: >>>"))
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print("恭喜您，修改成功..")
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return 0
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# 当走出循环的时候表明，学生不存在
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print("您输入的学生不存在，修改失败~~")
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return None
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# 查找学生信息
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def search_student():
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global class_info
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# 根据学生的姓名进行查找
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name = input("请输入您要查找的学生姓名：>>>")
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# 遍历班级信息，查找对应的学生
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for student in class_info:
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# 找到学生
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if student["name"] == name:
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print("姓名：{}\n年龄：{}\n成绩：{}"
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.format(student["name"], student["age"], student["score"]))
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return 0
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# 跳出循环表示学生没有找到
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print("您输入的学生不存在，查找失败~~")
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return None
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# 显示所有学生信息
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def show_student():
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print("%-10s%-5s%-5s" %("姓名", "年龄", "成绩"))
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# 遍历学生信息
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for student in class_info:
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print("%-10s%-5d%-5d" %(student["name"],
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student["age"], student["score"]))
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def run():
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# 开始运行学生管理系统
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while True:
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# 1.打印学生管理系统功能
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print_menu()
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# 2.从键盘中输入选择的功能
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choose = int(input("请输入您需要的功能 >>>>"))
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# 3.根据输入的选项，做相应的功能
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if choose == 1:
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# 添加学生功能
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add_student()
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elif choose == 2:
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# 删除学生信息
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del_student()
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elif choose == 3:
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# 修改学生信息
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modify_student()
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elif choose == 4:
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# 查找学生信息
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search_student()
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elif choose == 5:
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# 查看所有的学生信息
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show_student()
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elif choose == 6:
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# 退出系统
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print("Bey~~")
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break
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else:
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print("您输入有误，请重新输入~~")
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return None
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# 调用函数
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run()
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