不能在功能

Question

我正在做一個大富翁遊戲，&我試圖在畫布上繪製圖像繪製Tkinter的圖像，但它只會在功能上，如果不工作：

def make_image(root, location, canvas): 
photo = PhotoImage(file = root) 
canvas.create_image(location["X"],location["Y"], image = photo, anchor = "nw") 

class something(): 
def start(self, controller): 
    self.controller = controller 
    #photo = PhotoImage(file = "googolopoly.png") 
    #self.canvas.create_image(0,0, image = photo, anchor = "nw") 
    make_image("googolopoly.png", {"X":0,"Y":0}, self.canvas) 
    make_text(self.canvas, "MONOPOLY!!!!", {"X":1050,"Y":20}) 
    make_button(self.main_tk, self.canvas, "roll dice", lambda: self.roll_dice(), {"X":1100, "Y":50}, 100) 
    for i in range(controller.player_number): 
     self.players.append(make_text(self.canvas, str(i+1), {"X":902+i*10, "Y":946})) 
    self.main_tk.mainloop() 

目前

它贏得」 t畫一張圖片，但如果我記下它的意見，它將工作（沒有功能） 它也發生在主循環後，當我想繪製球員

我真的需要它作爲一個函數。該怎麼辦？如果你需要我可以把更多的代碼

Answer 1

你錯過了這行代碼：myCanvas.image = photo。

即使它會更容易在圖像上繪製一個標籤，與此代碼，你可以用函數make_image()做在Canvas：

from Tkinter import * 


def make_image(filename, location, canvas): 
    photo = PhotoImage(file=filename) 
    myCanvas.image = photo 
    myCanvas.create_image(0,0, image = photo, anchor = "nw") 



root = Tk() 

myCanvas = Canvas(root, width=100, height=100) 
myCanvas.grid() 


make_image("image.gif", (5,5,95,95), myCanvas) 

root.mainloop()