GUI程序设计——班级信息收集

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建立新表

import pymysql
db = pymysql.connect(host = "localhost", user = "root", password = "*******", database = "*******", charset='utf8' )
# 使用cursor()方法获取操作游标 
cursor = db.cursor()
cursor.execute("DROP TABLE IF EXISTS studentlist")
#使用预处理语句创建表
sql ="""
CREATE TABLE studentlist (
    name varchar(20) NOT NULL,
    number varchar(20) NOT NULL
    )"""
#执行sql语句
cursor.execute(sql)
db.close()

建立GUI界面并对button键添加事件（添加和查询）

  1 import pymysql
  2 import wx
  3 
  4 
  5 
  6 class MyFrame(wx.Frame):
  7     def __init__(self,parent,id):
  8         wx.Frame.__init__(self,parent,id,title="学生信息收集",size=(400,300))
  9         #创建面板
 10         panel=wx.Panel(self)
 11         #创建文本和密码输入框
 12         self.title =wx.StaticText(panel ,label="请输入姓名和学号",pos=(140,20))
 13         self.label_user =wx.StaticText(panel,label="姓 名:",pos=(50,50))
 14         self.text_user =wx.TextCtrl(panel,pos=(100,50),size=(235,25),style=wx.TE_LEFT) 
 15         self.label_number =wx.StaticText(panel,pos=(50,90),label="学 号:")
 16         self.text_number =wx.TextCtrl(panel,pos=(100,90),size=(235,25),style=wx.TE_LEFT)
 17         # 创建“确定”和“取消”按钮及添加事件
 18         self.bt_confirm =wx.Button(panel,label='添加',pos=(105,130))
 19         self.bt_confirm.Bind(wx.EVT_BUTTON,self.OnclickAdd)
 20         self.bt_cancel =wx.Button(panel,label='查询',pos=(195,130))
 21         self.bt_cancel.Bind(wx.EVT_BUTTON,self.OnclickCheck)
 22         
 23     def OnclickCheck(self,event):
 24         message = ""
 25         username = self.text_user.GetValue()
 26         usernumber = self.text_number.GetValue()
 27 
 28         
 29         #打开数据库
 30         db = pymysql.connect(host = "localhost", user = "root", password = "*******", database = "********", charset='utf8' )
 31 
 32         # 使用cursor()方法获取操作游标 
 33         cursor = db.cursor()
 34         
 35         
 36         
 37         if username == "" or usernumber == "":
 38                 message = '姓名或学号不能为空'
 39         else:
 40             try:
 41                 # SQL 插入语句
 42                 sql = "SELECT * FROM xinjistudent"
 43                 # 执行sql语句
 44                 cursor.execute(sql)
 45                 # 提交到数据库执行
 46                 db.commit()
 47                 # 获取所有命令行
 48                 a = cursor.fetchall()
 49                 for row in a:
 50                     sqlname = row[0]
 51                     sqlnumber = row[1]
 52                     
 53                     if username == sqlname and usernumber == sqlnumber:
 54                         message = '学生信息正确'
 55                         break
 56                 if message !='学生信息正确':
 57                         message = '学号姓名不匹配'
 58             except:
 59                 message = '学号不存在'
 60         # 关闭数据库连接
 61         db.close()
 62         wx.MessageBox(message)
 63         
 64     def OnclickAdd(self,event):
 65         message = ""
 66         user_name = self.text_user.GetValue()
 67         user_number = self.text_number.GetValue()
 68         print(user_name,user_number)
 69         db = pymysql.connect(host = "localhost", user = "root", password = "******", database = "******", charset='utf8' )
 70 
 71         # 使用cursor()方法获取操作游标 
 72         cursor = db.cursor()
 73         data = [(user_name,user_number)]
 74         
 75        
 76         
 77         if user_name == "" or user_number == "":
 78             message = '学号和姓名不能为空'
 79         elif len(user_name) >=1 and len(user_number) == 13:
 80             try:
 81                  # SQL 插入语句
 82                  sql = "INSERT INTO xinjistudent(name,number) VALUES (%s,%s)" 
 83                  # 执行sql语句
 84                  cursor.executemany(sql,data)
 85                  # 提交到数据库执行
 86                  db.commit()
 87            
 88                  message = '学生添加成功'
 89                 
 90             except:
 91                 message = '添加没有成功'
 92                 
 93             # 关闭数据库连接
 94             db.close()
 95         else:
 96             message = '填写格式不对'
 97                
 98         wx.MessageBox(message)
 99         
100                     
101 if __name__ == '__main__':
102     app =wx.App()        # 初始化 
103     frame =MyFrame(parent=None,id=-1)   #实例MyFrame类，并传递参数
104     frame.Show()         #显示窗口 
105     app.MainLoop()          # 调用主循环方法 import wx

1、添加

1.1成功添加