dddd/pythonProject100/main.py

import pymysql
from tkinter import ttk
import tkinter as tk
import tkinter.font as tkFont
from tkinter import *  # 图形界面库
import tkinter.messagebox as messagebox  # 弹窗


class StartPage:
    def __init__(self, parent_window):
        parent_window.destroy()  # 销毁子界面

        self.window = tk.Tk()  # 初始框的声明
        self.window.title('学生信息管理系统')
        self.window.geometry('300x470')  # 这里的乘是小x

        label = Label(self.window, text="学生信息管理系统", font=("Verdana", 20))
        label.pack(pady=100)  # pady=100 界面的长度

        Button(self.window, text="管理员登陆", font=tkFont.Font(size=16), command=lambda: AdminPage(self.window),
               width=30, height=2,
               fg='white', bg='gray', activebackground='black', activeforeground='white').pack()
        Button(self.window, text="学生登陆", font=tkFont.Font(size=16), command=lambda: StudentPage(self.window),
               width=30,
               height=2, fg='white', bg='gray', activebackground='black', activeforeground='white').pack()
        Button(self.window, text="关于", font=tkFont.Font(size=16), command=lambda: AboutPage(self.window), width=30,
               height=2,
               fg='white', bg='gray', activebackground='black', activeforeground='white').pack()
        Button(self.window, text='退出系统', height=2, font=tkFont.Font(size=16), width=30, command=self.window.destroy,
               fg='white', bg='gray', activebackground='black', activeforeground='white').pack()

        self.window.mainloop()  # 主消息循环


# 管理员登陆页面
class AdminPage:
    def __init__(self, parent_window):
        parent_window.destroy()  # 销毁主界面

        self.window = tk.Tk()  # 初始框的声明
        self.window.title('管理员登陆页面')
        self.window.geometry('300x450')  # 这里的乘是小x

        label = tk.Label(self.window, text='管理员登陆', bg='green', font=('Verdana', 20), width=30, height=2)
        label.pack()

        Label(self.window, text='管理员账号：', font=tkFont.Font(size=14)).pack(pady=25)
        self.admin_username = tk.Entry(self.window, width=30, font=tkFont.Font(size=14), bg='Ivory')
        self.admin_username.pack()

        Label(self.window, text='管理员密码：', font=tkFont.Font(size=14)).pack(pady=25)
        self.admin_pass = tk.Entry(self.window, width=30, font=tkFont.Font(size=14), bg='Ivory', show='*')
        self.admin_pass.pack()

        Button(self.window, text="登陆", width=8, font=tkFont.Font(size=12), command=self.login).pack(pady=40)
        Button(self.window, text="返回首页", width=8, font=tkFont.Font(size=12), command=self.back).pack()

        self.window.protocol("WM_DELETE_WINDOW", self.back)  # 捕捉右上角关闭点击
        self.window.mainloop()  # 进入消息循环

    def login(self):
        print(str(self.admin_username.get()))
        print(str(self.admin_pass.get()))
        admin_pass = None

        # 数据库操作 查询管理员表
        db = pymysql.connect("localhost", "root", "123456", "student")  # 打开数据库连接
        cursor = db.cursor()  # 使用cursor()方法获取操作游标
        sql = "SELECT * FROM admin_login_k WHERE admin_id = '%s'" % (self.admin_username.get())  # SQL 查询语句
        try:
            # 执行SQL语句
            cursor.execute(sql)
            # 获取所有记录列表
            results = cursor.fetchall()
            for row in results:
                admin_id = row[0]
                admin_pass = row[1]
                # 打印结果
                print("admin_id=%s,admin_pass=%s" % (admin_id, admin_pass))
        except:
            print("Error: unable to fecth data")
            messagebox.showinfo('警告！', '用户名或密码不正确！')
        db.close()  # 关闭数据库连接

        print("正在登陆管理员管理界面")
        print("self", self.admin_pass)
        print("local", admin_pass)

        if self.admin_pass.get() == admin_pass:
            AdminManage(self.window)  # 进入管理员操作界面
        else:
            messagebox.showinfo('警告！', '用户名或密码不正确！')

    def back(self):
        StartPage(self.window)  # 显示主窗口 销毁本窗口


# 学生登陆页面
class StudentPage:
    def __init__(self, parent_window):
        parent_window.destroy()  # 销毁主界面

        self.window = tk.Tk()  # 初始框的声明
        self.window.title('学生登陆')
        self.window.geometry('300x450')  # 这里的乘是小x

        label = tk.Label(self.window, text='学生登陆', bg='green', font=('Verdana', 20), width=30, height=2)
        label.pack()

        Label(self.window, text='学生账号：', font=tkFont.Font(size=14)).pack(pady=25)
        self.student_id = tk.Entry(self.window, width=30, font=tkFont.Font(size=14), bg='Ivory')
        self.student_id.pack()

        Label(self.window, text='学生密码：', font=tkFont.Font(size=14)).pack(pady=25)
        self.student_pass = tk.Entry(self.window, width=30, font=tkFont.Font(size=14), bg='Ivory', show='*')
        self.student_pass.pack()

        Button(self.window, text="登陆", width=8, font=tkFont.Font(size=12), command=self.login).pack(pady=40)
        Button(self.window, text="返回首页", width=8, font=tkFont.Font(size=12), command=self.back).pack()

        self.window.protocol("WM_DELETE_WINDOW", self.back)  # 捕捉右上角关闭点击
        self.window.mainloop()  # 进入消息循环

    def login(self):
        print(str(self.student_id.get()))
        print(str(self.student_pass.get()))
        stu_pass = None

        # 数据库操作 查询管理员表
        db = pymysql.connect("localhost", "root", "123456", "student")  # 打开数据库连接
        cursor = db.cursor()  # 使用cursor()方法获取操作游标
        sql = "SELECT * FROM stu_login_k WHERE stu_id = '%s'" % (self.student_id.get())  # SQL 查询语句
        try:
            # 执行SQL语句
            cursor.execute(sql)
            # 获取所有记录列表
            results = cursor.fetchall()
            for row in results:
                stu_id = row[0]
                stu_pass = row[1]
                # 打印结果
                print("stu_id=%s,stu_pass=%s" % (stu_id, stu_pass))
        except:
            print("Error: unable to fecth data")
            messagebox.showinfo('警告！', '用户名或密码不正确！')
        db.close()  # 关闭数据库连接

        print("正在登陆学生信息查看界面")
        print("self", self.student_pass.get())
        print("local", stu_pass)

        if self.student_pass.get() == stu_pass:
            StudentView(self.window, self.student_id.get())  # 进入学生信息查看界面
        else:
            messagebox.showinfo('警告！', '用户名或密码不正确！')

    def back(self):
        StartPage(self.window)  # 显示主窗口 销毁本窗口


# 管理员操作界面
class AdminManage:
    def __init__(self, parent_window):
        parent_window.destroy()  # 销毁主界面

        self.window = Tk()  # 初始框的声明
        self.window.title('管理员操作界面')

        self.frame_left_top = tk.Frame(width=300, height=200)
        self.frame_right_top = tk.Frame(width=200, height=200)
        self.frame_center = tk.Frame(width=500, height=400)
        self.frame_bottom = tk.Frame(width=650, height=50)

        # 定义下方中心列表区域
        self.columns = ("学号", "姓名", "性别", "年龄")
        self.tree = ttk.Treeview(self.frame_center, show="headings", height=18, columns=self.columns)
        self.vbar = ttk.Scrollbar(self.frame_center, orient=VERTICAL, command=self.tree.yview)
        # 定义树形结构与滚动条
        self.tree.configure(yscrollcommand=self.vbar.set)

        # 表格的标题
        self.tree.column("学号", width=150, anchor='center')  # 表示列,不显示
        self.tree.column("姓名", width=150, anchor='center')
        self.tree.column("性别", width=100, anchor='center')
        self.tree.column("年龄", width=100, anchor='center')

        # 调用方法获取表格内容插入
        self.tree.grid(row=0, column=0, sticky=NSEW)
        self.vbar.grid(row=0, column=1, sticky=NS)

        self.id = []
        self.name = []
        self.gender = []
        self.age = []
        # 打开数据库连接
        db = pymysql.connect("localhost", "root", "root", "student")
        cursor = db.cursor()  # 使用cursor()方法获取操作游标
        sql = "SELECT * FROM student_k"  # SQL 查询语句
        try:
            # 执行SQL语句
            cursor.execute(sql)
            # 获取所有记录列表
            results = cursor.fetchall()
            for row in results:
                self.id.append(row[0])
                self.name.append(row[1])
                self.gender.append(row[2])
                self.age.append(row[3])
            # print(self.id)
            # print(self.name)
            # print(self.gender)
            # print(self.age)
        except:
            print("Error: unable to fetch data")
            messagebox.showinfo('警告！', '数据库连接失败！')
        db.close()  # 关闭数据库连接

        print("test***********************")
        for i in range(min(len(self.id), len(self.name), len(self.gender), len(self.age))):  # 写入数据
            self.tree.insert('', i, values=(self.id[i], self.name[i], self.gender[i], self.age[i]))

        for col in self.columns:  # 绑定函数，使表头可排序
            self.tree.heading(col, text=col,
                              command=lambda _col=col: self.tree_sort_column(self.tree, _col, False))

        # 定义顶部区域
        # 定义左上方区域
        self.top_title = Label(self.frame_left_top, text="学生信息:", font=('Verdana', 20))
        self.top_title.grid(row=0, column=0, columnspan=2, sticky=NSEW, padx=50, pady=10)

        self.left_top_frame = tk.Frame(self.frame_left_top)
        self.var_id = StringVar()  # 声明学号
        self.var_name = StringVar()  # 声明姓名
        self.var_gender = StringVar()  # 声明性别
        self.var_age = StringVar()  # 声明年龄
        # 学号
        self.right_top_id_label = Label(self.frame_left_top, text="学号：", font=('Verdana', 15))
        self.right_top_id_entry = Entry(self.frame_left_top, textvariable=self.var_id, font=('Verdana', 15))
        self.right_top_id_label.grid(row=1, column=0)  # 位置设置
        self.right_top_id_entry.grid(row=1, column=1)
        # 姓名
        self.right_top_name_label = Label(self.frame_left_top, text="姓名：", font=('Verdana', 15))
        self.right_top_name_entry = Entry(self.frame_left_top, textvariable=self.var_name, font=('Verdana', 15))
        self.right_top_name_label.grid(row=2, column=0)  # 位置设置
        self.right_top_name_entry.grid(row=2, column=1)
        # 性别
        self.right_top_gender_label = Label(self.frame_left_top, text="性别：", font=('Verdana', 15))
        self.right_top_gender_entry = Entry(self.frame_left_top, textvariable=self.var_gender,
                                            font=('Verdana', 15))
        self.right_top_gender_label.grid(row=3, column=0)  # 位置设置
        self.right_top_gender_entry.grid(row=3, column=1)
        # 年龄
        self.right_top_gender_label = Label(self.frame_left_top, text="年龄：", font=('Verdana', 15))
        self.right_top_gender_entry = Entry(self.frame_left_top, textvariable=self.var_age,
                                            font=('Verdana', 15))
        self.right_top_gender_label.grid(row=4, column=0)  # 位置设置
        self.right_top_gender_entry.grid(row=4, column=1)

        # 定义右上方区域
        self.right_top_title = Label(self.frame_right_top, text="操作：", font=('Verdana', 20))

        self.tree.bind('<Button-1>', self.click)  # 左键获取位置
        self.right_top_button1 = ttk.Button(self.frame_right_top, text='新建学生信息', width=20, command=self.new_row)
        self.right_top_button2 = ttk.Button(self.frame_right_top, text='更新选中学生信息', width=20,
                                            command=self.updata_row)
        self.right_top_button3 = ttk.Button(self.frame_right_top, text='删除选中学生信息', width=20,
                                            command=self.del_row)

        # 位置设置
        self.right_top_title.grid(row=1, column=0, pady=10)
        self.right_top_button1.grid(row=2, column=0, padx=20, pady=10)
        self.right_top_button2.grid(row=3, column=0, padx=20, pady=10)
        self.right_top_button3.grid(row=4, column=0, padx=20, pady=10)

        # 整体区域定位
        self.frame_left_top.grid(row=0, column=0, padx=2, pady=5)
        self.frame_right_top.grid(row=0, column=1, padx=30, pady=30)
        self.frame_center.grid(row=1, column=0, columnspan=2, padx=4, pady=5)
        self.frame_bottom.grid(row=2, column=0, columnspan=2)

        self.frame_left_top.grid_propagate(0)
        self.frame_right_top.grid_propagate(0)
        self.frame_center.grid_propagate(0)
        self.frame_bottom.grid_propagate(0)

        self.frame_left_top.tkraise()  # 开始显示主菜单
        self.frame_right_top.tkraise()  # 开始显示主菜单
        self.frame_center.tkraise()  # 开始显示主菜单
        self.frame_bottom.tkraise()  # 开始显示主菜单

        self.window.protocol("WM_DELETE_WINDOW", self.back)  # 捕捉右上角关闭点击
        self.window.mainloop()  # 进入消息循环

    def back(self):
        StartPage(self.window)  # 显示主窗口 销毁本窗口

    def click(self, event):
        self.col = self.tree.identify_column(event.x)  # 列
        self.row = self.tree.identify_row(event.y)  # 行

        print(self.col)
        print(self.row)
        self.row_info = self.tree.item(self.row, "values")
        self.var_id.set(self.row_info[0])
        self.var_name.set(self.row_info[1])
        self.var_gender.set(self.row_info[2])
        self.var_age.set(self.row_info[3])
        self.right_top_id_entry = Entry(self.frame_left_top, state='disabled', textvariable=self.var_id,
                                        font=('Verdana', 15))

        print('')

    def tree_sort_column(self, tv, col, reverse):  # Treeview、列名、排列方式
        l = [(tv.set(k, col), k) for k in tv.get_children('')]
        l.sort(reverse=reverse)  # 排序方式
        # rearrange items in sorted positions
        for index, (val, k) in enumerate(l):  # 根据排序后索引移动
            tv.move(k, '', index)
        tv.heading(col, command=lambda: self.tree_sort_column(tv, col, not reverse))  # 重写标题，使之成为再点倒序的标题

    def new_row(self):
        print('123')
        print(self.var_id.get())
        print(self.id)
        if str(self.var_id.get()) in self.id:
            messagebox.showinfo('警告！', '该学生已存在！')
        else:
            if self.var_id.get() != '' and self.var_name.get() != '' and self.var_gender.get() != '' and self.var_age.get() != '':
                # 打开数据库连接
                db = pymysql.connect("localhost", "root", "root", "student")
                cursor = db.cursor()  # 使用cursor()方法获取操作游标
                sql = "INSERT INTO student_k(id, name, gender, age) \
				       VALUES ('%s', '%s', '%s', '%s')" % \
                      (self.var_id.get(), self.var_name.get(), self.var_gender.get(), self.var_age.get())  # SQL 插入语句
                try:
                    cursor.execute(sql)  # 执行sql语句
                    db.commit()  # 提交到数据库执行
                except:
                    db.rollback()  # 发生错误时回滚
                    messagebox.showinfo('警告！', '数据库连接失败！')
                db.close()  # 关闭数据库连接

                self.id.append(self.var_id.get())
                self.name.append(self.var_name.get())
                self.gender.append(self.var_gender.get())
                self.age.append(self.var_age.get())
                self.tree.insert('', len(self.id) - 1, values=(
                    self.id[len(self.id) - 1], self.name[len(self.id) - 1], self.gender[len(self.id) - 1],
                    self.age[len(self.id) - 1]))
                self.tree.update()
                messagebox.showinfo('提示！', '插入成功！')
            else:
                messagebox.showinfo('警告！', '请填写学生数据')

    def updata_row(self):
        res = messagebox.askyesnocancel('警告！', '是否更新所填数据？')
        if res == True:
            if self.var_id.get() == self.row_info[0]:  # 如果所填学号 与 所选学号一致
                # 打开数据库连接
                db = pymysql.connect("localhost", "root", "root", "student")
                cursor = db.cursor()  # 使用cursor()方法获取操作游标
                sql = "UPDATE student_k SET name = '%s', gender = '%s', age = '%s' \
				 WHERE id = '%s'" % (
                self.var_name.get(), self.var_gender.get(), self.var_age.get(), self.var_id.get())  # SQL 插入语句
                try:
                    cursor.execute(sql)  # 执行sql语句
                    db.commit()  # 提交到数据库执行
                    messagebox.showinfo('提示！', '更新成功！')
                except:
                    db.rollback()  # 发生错误时回滚
                    messagebox.showinfo('警告！', '更新失败，数据库连接失败！')
                db.close()  # 关闭数据库连接

                id_index = self.id.index(self.row_info[0])
                self.name[id_index] = self.var_name.get()
                self.gender[id_index] = self.var_gender.get()
                self.age[id_index] = self.var_age.get()

                self.tree.item(self.tree.selection()[0], values=(
                    self.var_id.get(), self.var_name.get(), self.var_gender.get(),
                    self.var_age.get()))  # 修改对于行信息
            else:
                messagebox.showinfo('警告！', '不能修改学生学号！')

    def del_row(self):
        res = messagebox.askyesnocancel('警告！', '是否删除所选数据？')
        if res == True:
            print(self.row_info[0])  # 鼠标选中的学号
            print(self.tree.selection()[0])  # 行号
            print(self.tree.get_children())  # 所有行
            # 打开数据库连接
            db = pymysql.connect("localhost", "root", "root", "student")
            cursor = db.cursor()  # 使用cursor()方法获取操作游标
            sql = "DELETE FROM student_k WHERE id = '%s'" % (self.row_info[0])  # SQL 插入语句
            try:
                cursor.execute(sql)  # 执行sql语句
                db.commit()  # 提交到数据库执行
                messagebox.showinfo('提示！', '删除成功！')
            except:
                db.rollback()  # 发生错误时回滚
                messagebox.showinfo('警告！', '删除失败，数据库连接失败！')
            db.close()  # 关闭数据库连接

            id_index = self.id.index(self.row_info[0])
            print(id_index)
            del self.id[id_index]
            del self.name[id_index]
            del self.gender[id_index]
            del self.age[id_index]
            print(self.id)
            self.tree.delete(self.tree.selection()[0])  # 删除所选行
            print(self.tree.get_children())


# 学生查看信息界面
class StudentView:
    def __init__(self, parent_window, student_id):
        parent_window.destroy()  # 销毁主界面

        self.window = tk.Tk()  # 初始框的声明
        self.window.title('关于')
        self.window.geometry('300x450')  # 这里的乘是小x

        label = tk.Label(self.window, text='学生信息查看', bg='green', font=('Verdana', 20), width=30, height=2)
        label.pack(pady=20)

        self.id = '学号:' + ''
        self.name = '姓名:' + ''
        self.gender = '性别:' + ''
        self.age = '年龄:' + ''
        # 打开数据库连接
        db = pymysql.connect("localhost", "root", "root", "student")
        cursor = db.cursor()  # 使用cursor()方法获取操作游标
        sql = "SELECT * FROM student_k WHERE id = '%s'" % (student_id)  # SQL 查询语句
        try:
            # 执行SQL语句
            cursor.execute(sql)
            # 获取所有记录列表
            results = cursor.fetchall()
            for row in results:
                self.id = '学号:' + row[0]
                self.name = '姓名:' + row[1]
                self.gender = '性别:' + row[2]
                self.age = '年龄:' + row[3]
        except:
            print("Error: unable to fetch data")
        db.close()  # 关闭数据库连接

        Label(self.window, text=self.id, font=('Verdana', 18)).pack(pady=5)
        Label(self.window, text=self.name, font=('Verdana', 18)).pack(pady=5)
        Label(self.window, text=self.gender, font=('Verdana', 18)).pack(pady=5)
        Label(self.window, text=self.age, font=('Verdana', 18)).pack(pady=5)

        Button(self.window, text="返回首页", width=8, font=tkFont.Font(size=16), command=self.back).pack(pady=25)

        self.window.protocol("WM_DELETE_WINDOW", self.back)  # 捕捉右上角关闭点击
        self.window.mainloop()  # 进入消息循环

    def back(self):
        StartPage(self.window)  # 显示主窗口 销毁本窗口


# About页面
class AboutPage:
    def __init__(self, parent_window):
        parent_window.destroy()  # 销毁主界面

        self.window = tk.Tk()  # 初始框的声明
        self.window.title('关于')
        self.window.geometry('300x450')  # 这里的乘是小x

        label = tk.Label(self.window, text='学生信息管理系统', bg='green', font=('Verdana', 20), width=30, height=2)
        label.pack()

        Label(self.window, text='作者：清晨的光明', font=('Verdana', 18)).pack(pady=30)
        Label(self.window, text='blog.csdn.net/kdongyi', font=('Verdana', 18)).pack(pady=5)

        Button(self.window, text="返回首页", width=8, font=tkFont.Font(size=12), command=self.back).pack(pady=100)

        self.window.protocol("WM_DELETE_WINDOW", self.back)  # 捕捉右上角关闭点击
        self.window.mainloop()  # 进入消息循环

    def back(self):
        StartPage(self.window)  # 显示主窗口 销毁本窗口


if __name__ == '__main__':
    try:
        # 打开数据库连接 连接测试
        db = pymysql.connect("localhost", "root", "root", "student")
        # 使用cursor()方法获取操作游标
        cursor = db.cursor()
        # 如果数据表不存在则创建表 若存在则跳过
        # 设置主键唯一
        sql = """CREATE TABLE IF NOT EXISTS student_k(
				id char(20) NOT NULL,
				name char(20) default NULL,
				gender char(5) default NULL,  
				age char(5) default NULL,
				PRIMARY KEY (id)

				) ENGINE = InnoDB 
				DEFAULT	CHARSET = utf8
				"""
        cursor.execute(sql)
        # 如果数据表不存在则创建表 若存在则跳过
        sql = """CREATE TABLE IF NOT EXISTS admin_login_k(
						admin_id char(20) NOT NULL,
						admin_pass char(20) default NULL,
						PRIMARY KEY (admin_id)
						) ENGINE = InnoDB 
						DEFAULT	CHARSET = utf8
						"""
        cursor.execute(sql)
        # 如果数据表不存在则创建表 若存在则跳过
        sql = """CREATE TABLE IF NOT EXISTS stu_login_k(
						stu_id char(20) NOT NULL,
						stu_pass char(20) default NULL,
						PRIMARY KEY (stu_id)
						) ENGINE = InnoDB 
						DEFAULT	CHARSET = utf8
						"""
        cursor.execute(sql)

        # 关闭数据库连接
        db.close()

        # 实例化Application
        window = tk.Tk()
        StartPage(window)
    except:
        messagebox.showinfo('错误！', '连接数据库失败！')