事件处理

#_author:来童星
#date:2019/12/21
# 事件处理
import wx
class MyFrame(wx.Frame):
    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,'用户登录',size=(400,300))
        # 创建画板
        panel=wx.Panel(self)

        # 创建确定和取消按钮，并绑定事件
        self.bt_confirm = wx.Button(panel,label='确定')
        self.bt_confirm.Bind(wx.EVT_BUTTON,self.OnclickSubmit)
        self.bt_canel = wx.Button(panel, label='取消')
        self.bt_canel.Bind(wx.EVT_BUTTON, self.OnclickCancel)


        self.title=wx.StaticText(panel,label='请输入用户名和密码')
        self.label_user=wx.StaticText(panel,lable='用户名:')
        self.text_user=wx.TextCtrl(panel,style=wx.TE_LEFT)
        self.label_pwd=wx.StaticText(panel,label='密  码:')
        self.text_password=wx.TextCtrl(panel,style=wx.TE_PASSWORD)


        # 添加容器,容器中控件横向排列
        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_pwd=wx.BoxSizer(wx.HORIZONTAL)
        hsizer_pwd.Add(self.label_pwd,proportion=0,flag=wx.ALL,border=5)
        hsizer_pwd.Add(self.text_password,proportion=1,flag=wx.ALL,border=5)

        hsizer_button=wx.BoxSizer(wx.HORIZONTAL)
        hsizer_button.Add(self.bt_confirm,proportion=0,flag=wx.ALIGN_CENTER,border=5)
        hsizer_button.Add(self.bt_canel,proportion=0,flag=wx.ALIGN_CENTER,border=5)

        # 添加容器,容器中控件纵向排列
        vsize_all=wx.BoxSizer(wx.VERTICAL)
        vsize_all.Add(self.title,proportion=0,flag=wx.BOTTOM|wx.TOP|wx.ALIGN_CENTER,border=5)
        vsize_all.Add(hsizer_user,proportion=0,flag=wx.EXPAND|wx.TE_LEFT|wx.RIGHT,border=45)
        vsize_all.Add(hsizer_pwd,proportion=0,flag=wx.EXPAND|wx.TE_LEFT|wx.RIGHT,border=45)
        vsize_all.Add(hsizer_button,proportion=0,flag=wx.ALIGN_CENTER|wx.TOP,border=15)

        panel.SetSize(vsize_all)



        def OnclickSubmit(self,event):
            '''单击 确定 按钮执行方法'''
            message=''
            username=self.text_user.GetValue()# 获取输入的用户名
            password=self.text_password.GetValue()# 获取输入的密码
            if username=='' or password=='':# 判断用户名和密码是否为空
                message='用户名和密码不能为空'
            elif username=='mr' and password=='mrsoft':
                message='登陆成功'
            else:
                message='用户名和密码不匹配'
            wx.MessageBox(message)# 弹出提示框

        def OnclickCancel(self,event):
            '''单击 取消 按钮执行方法'''
            self.text_user.SetValue('') # 清空输入的用户名
            self.text_password.SetValue('') # 清空输入的密码
if __name__=='__main__':
    app=wx.App()
    frame=MyFrame(parent=None,id=-1)
    frame.Show()
    app.MainLoop()
question：
Traceback (most recent call last):
  File "D:/pycharm_file/new_files/learn_python/week9/t1.py", line 68, in <module>
    frame=MyFrame(parent=None,id=-1)
  File "D:/pycharm_file/new_files/learn_python/week9/t1.py", line 13, in __init__
    self.bt_confirm.Bind(wx.EVT_BUTTON,self.OnclickSubmit)
AttributeError: 'MyFrame' object has no attribute 'OnclickSubmit'