我创建了一个框架,然后创建了一个画布。
我接下来要做的是在画布上添加一个按钮。
但是,当我打包按钮时,我看不到画布!
这是我尝试过的:
from Tkinter import Tk, Canvas, Frame, Button
from Tkinter import BOTH, W, NW, SUNKEN, TOP, X, FLAT, LEFT
class Example(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.initUI()
def initUI(self):
self.parent.title("Layout Test")
self.config(bg = '#F0F0F0')
self.pack(fill = BOTH, expand = 1)
#create canvas
canvas1 = Canvas(self, relief = FLAT, background = "#D2D2D2",
width = 180, height = 500)
canvas1.pack(side = TOP, anchor = NW, padx = 10, pady = 10)
#add quit button
button1 = Button(canvas1, text = "Quit", command = self.quit,
anchor = W)
button1.configure(width = 10, activebackground = "#33B5E5",
relief = FLAT)
button1.pack(side = TOP)
def main():
root = Tk()
root.geometry('800x600+10+50')
app = Example(root)
app.mainloop()
if __name__ == '__main__':
main()