闲来无事,,,,一个“画图"，闲来无事画图,import Tkint

闲来无事,,,,一个“画图"，闲来无事画图,import Tkint

import Tkinterclass mybutton:     def __init__(self,root,canvas,label,types):         self.root=root         self.canvas=canvas         self.label=label         if types==0:             button=Tkinter.Button(root,text='Drawline',command=self.Drawline)         elif types==1:             button=Tkinter.Button(root,text='Drawarc',command=self.Drawarc)         else :             button=Tkinter.Button(root,text='Drawrect',command=self.Drawrect)         button.pack(side='right')     def Drawline(self):         self.label.text.set('Draw line')         self.canvas.setstatus(0)     def  Drawarc(self):         self.label.text.set('Draw arc')         self.canvas.setstatus(1)     def Drawrect(self):         self.label.text.set('Draw rect')         self.canvas.setstatus(2)class mycanvas:     def __init__(self,root):        self.status=0        self.draw=0        self.root=root        self.canvas=Tkinter.Canvas(root,bg='white',width=600,height=480)        self.canvas.pack()        self.canvas.bind('<ButtonRelease-1>',self.Draw)        self.canvas.bind('<Button-2>',self.Exit)        self.canvas.bind('<Button-3>',self.Del)     def Draw(self,event):        if self.draw==0:            self.x=event.x            self.y=event.y            self.draw=1        else:            if self.status==0:                self.canvas.create_line(self.x,self.y,event.x,event.y)                self.draw=0            elif self.status==1:                self.canvas.create_arc(self.x,self.y,event.x,event.y)                self.draw=0            else :                self.canvas.create_rectangle(self.x,self.y,event.x,event.y)                self.draw=0     def Del(self,event):        items=self.canvas.find_all()        for item in items:            self.canvas.delete(item)     def Exit(self):        self.root.quit()     def setstatus(self,status):        self.status=statusclass mylabel:     def __init__(self,root):          self.root=root          self.canvas=canvas          self.text=Tkinter.StringVar()          self.text.set('draw line')          self.label=Tkinter.Label(root,textvariable=self.text,fg='red',width=50)          self.label.pack(side='left')root=Tkinter.Tk()canvas=mycanvas(root)label=mylabel(root)mybutton(root,canvas,label,0)mybutton(root,canvas,label,1)mybutton(root,canvas,label,2)root.mainloop()