import pymysql
db = pymysql.connect(host="localhost",user = "root",password = "mmwan0825",database= "NameList")
cursor = db.cursor()
cursor.execute("SELECT VERSION()")
data = cursor.fetchone()
print("Database version : %s " % data)
db.close()
import pymysql
db = pymysql.connect(host="localhost",user = "root",password = "mmwan0825",database= "NameList")
cursor = db.cursor()
cursor.execute("DROP TABLE IF EXISTS xinji_1class")
sql = """CREATE TABLE xinji_1class (
Name CHAR(20) NOT NULL,
class CHAR(20) NOT NULL,
Number CHAR(20) NOT NULL)"""
cursor.execute(sql)
db.close()
import pymysql
import wx
class MyFrame(wx.Frame):
def __init__(self,parent,id):
wx.Frame.__init__(self,parent,id,'班级信息收集',size=(400,300))
#创建面板
panel = wx.Panel(self)

#创建“保存”和“查询”按钮，并绑定事件
self.bt_storage = wx.Button(panel,label="保存")
self.bt_storage.Bind(wx.EVT_BUTTON,self.OnclickStorage)
self.bt_inquire = wx.Button(panel,label ='查询')
self.bt_inquire.Bind(wx.EVT_BUTTON,self.OnclickInquire)
#创建文本，左对齐
self.title =wx.StaticText(panel,label ="保存信息请输入用户的学号班级和姓名\n\t查询请输入姓名或学号")
self.label_class =wx.StaticText(panel,label ="班级：")
self.text_class =wx.TextCtrl(panel,style =wx.TE_LEFT)
self.label_user =wx.StaticText(panel,label ="姓名：")
self.text_user =wx.TextCtrl(panel,style =wx.TE_LEFT)
self.label_number = wx.StaticText(panel,label ="学号：")
self.text_number = wx.TextCtrl(panel,style =wx.TE_LEFT)
#添加容器，容器中控件横向排列
hsizer_class =wx.BoxSizer(wx.HORIZONTAL)
hsizer_class.Add(self.label_class,proportion=0,flag=wx.ALL,border=5)
hsizer_class.Add(self.text_class,proportion=1,flag=wx.ALL,border=5)
hsizer_user = wx.BoxSizer(wx.HORIZONTAL)
hsizer_user.Add(self.label_user,proportion=0,flag=wx.ALL,border=5)
hsizer_user.Add(self.text_user,proportion=1,flag =wx.ALL,border=5)
hsizer_number =wx.BoxSizer(wx.HORIZONTAL)
hsizer_number.Add(self.label_number,proportion=0,flag=wx.ALL,border=5)
hsizer_number.Add(self.text_number,proportion=1,flag=wx.ALL,border=5)
hsizer_button =wx.BoxSizer(wx.HORIZONTAL)
hsizer_button.Add(self.bt_storage,proportion=0,flag=wx.ALIGN_CENTER,border=5)
hsizer_button.Add(self.bt_inquire,proportion=0,flag=wx.ALIGN_CENTER,border=5)
#添加容器，容器中的控件纵向排列
vsizer_all = wx.BoxSizer(wx.VERTICAL)
vsizer_all.Add(self.title,proportion=0,flag=wx.BOTTOM |wx.TOP |wx.ALIGN_CENTER,border=15)
vsizer_all.Add(hsizer_class,proportion=0,flag=wx.EXPAND |wx.LEFT |wx.RIGHT,border=45)
vsizer_all.Add(hsizer_user,proportion=0,flag=wx.EXPAND |wx.LEFT |wx.RIGHT,border=45)
vsizer_all.Add(hsizer_number,proportion=0,flag=wx.EXPAND |wx.LEFT |wx.RIGHT,border=45)
vsizer_all.Add(hsizer_button,proportion=0,flag=wx.ALIGN_CENTER |wx.TOP,border=15)
panel.SetSizer(vsizer_all)

def OnclickStorage(self,event):
"单击保存按钮"
#连接数据库
db =pymysql.connect(host='localhost',user='root',password='mmwan0825',database="NameList",charset='utf8')
message =""
classname =self.text_class.GetValue() #获取输入的班级
username =self.text_user.GetValue() #获取输入的用户名
number =self.text_number.GetValue() #获取输入的学号
#使用cursor()方法创建一个游标对象
cursor = db.cursor()
#数据列表
data = [(classname,username,number)]
try:
#执行sql语句，插入数据
sql="insert into xinji_1class(class, name, number) values(%s,%s,%s)"
cursor.executemany(sql,data)
#提交数据
db.commit()
except:
#发生错误时回滚
db.rollback()
#关闭连接
db.close()
#判断是否为空
if classname =="" or username =="" or number =="":
message ='班级或名字或密码不能为空'
else:
message ='保存成功' #用户名或密码错误
wx.MessageBox(message) #弹出提示框

def OnclickInquire(self,event):
"单击查询按钮"
username =self.text_user.GetValue() #获取输入的用户名
number =self.text_number.GetValue() #获取输入的学号
db =pymysql.connect(host='localhost',user='root',password='mmwan0825',database="NameList",charset='utf8')
#使用cursor()方法创建一个游标对象
cursor = db.cursor()
sql =""
message =""
if username:
sql ="SELECT * FROM xinji_1class \
WHERE NAME = %s" #找到该名字
try:
#执行sql语句
cursor.execute(sql,username)
#获取记录
results =cursor.fetchall()
if results: #若找到不为空，输出对应的信息
for row in results:
classname = row[0]
username =row[1]
number =row[2]
message ="班级：{}\n姓名：{}\n学号：{}\n".format(classname,username,number)
else:
message ="没有这个名字"
except:
print("Error: unable to fecth data") #数据错误--
elif number:
sql ="SELECT * FROM xinji_1class \
WHERE NUMBER = %s" #查找学号，同上
try:
#执行sql语句
cursor.execute(sql,number)
#获取记录
results =cursor.fetchall()
if results:
for row in results:
classname = row[0]
username =row[1]
number =row[2]
message ="班级：{}\n姓名：{}\n学号：{}\n".format(classname,username,number)
else:
message ="没有这个学号"
except:
print("Error: unable to fecth data")
else:
message ="班级或名字或密码不能为空"
#关闭数据库
db.close()
wx.MessageBox(message)
if __name__ =='__main__':
app = wx.App() #初始化应用
frame = MyFrame(parent=None, id=-1) #实例MyFrame类，并传递参数
frame.Show() #显示窗口
app.MainLoop()