我的程序应该在点击滚动骰子后 - 它使用六个骰子图像，一个，两个，三个，四个，五个和六个点。首先显示带有一个点的图像，然后点击图像后应随机更改8次。最后，最后一张随机图像应保留在屏幕上，但它不起作用，我无法解决它。知道如何解决它吗？ （我知道这不需要3个课程，但是当我解决这个问题时我会继续学习） 感谢
import tkinter, random
class Main:
def __init__(self, area, dice):
dice.throw(area)
class Area:
def __init__(self):
self.canvas = tkinter.Canvas(width=1000, height=600)
self.canvas.pack()
self.dice1 = tkinter.PhotoImage(file='numberOne.png')
self.canvas.create_image(680,540,image=self.dice1)
self.canvas.bind('<Button-1>', Dice.throw)
class Dice:
def throw(event):
if event.x < 730 and event.x > 630 and event.y < 590 and event.y > 490:
dice1 = tkinter.PhotoImage(file='numberOne.png')
dice2 = tkinter.PhotoImage(file='numberTwo.png')
dice3 = tkinter.PhotoImage(file='numberThree.png')
dice4 = tkinter.PhotoImage(file='numberFour.png')
dice5 = tkinter.PhotoImage(file='numberFive.png')
dice6 = tkinter.PhotoImage(file='numberSix.png')
for i in range(8):
number = random.randrange(6) + 1
if number == 1:
area.canvas.create_image(680,540,image=dice1)
elif number == 2:
area.canvas.create_image(680,540,image=dice2)
elif number == 3:
area.canvas.create_image(680,540,image=dice3)
elif number == 4:
area.canvas.create_image(680,540,image=dice4)
elif number == 5:
area.canvas.create_image(680,540,image=dice5)
elif number == 6:
area.canvas.create_image(680,540,image=dice6)
area.canvas.after(100)
area.canvas.update()
pl = Area()
dice = Dice()
main = Main(pl, dice)
答案 0 :(得分：0)
问题是Area实例（pl）需要访问Dive实例（dive）和Dive实例需要访问Area实例
dice = Dice(root)
area = Area(root, dice) # `Area` gets access to `Dive` instace
dice.area = area # `Dive` gets access to `Area` instace
之后Dive可以使用dive.throw而Dive可以使用area.canvas或其他元素。
为了简单起见，我将标签分配给画布上的图像，然后我可以使用tag_bind分配<Button-1>，而不必检查event.x，event.y
我没有使用create_image创建新图像，而是在cavas上的现有元素中更改图像。
create_image()提供元素ID
self.image_id = self.canvas.create_image(...)
所以稍后我可以更改此元素中的图像
self.canvas.itemconfig(self.image_id, image=image)
我将所有图片保留在列表中，因此我不需要所有变量dice1，dice2等等。我可以使用索引而不是if/elif来获取图像。我也可以使用random.choice(self.images)从列表中获取随机元素。
image = random.choice(self.images)
完整代码：
import tkinter
import random
class Main:
def __init__(self, area, dice):
dice.throw(area)
class Area:
def __init__(self, master, dice):
self.master = master
self.canvas = tkinter.Canvas(master, width=1000, height=600)
self.canvas.pack()
self.image = tkinter.PhotoImage(file='numberOne.png')
self.image_id = self.canvas.create_image(680, 540, image=self.image, tags='tag_image')
self.canvas.tag_bind('tag_image', '<Button-1>', dice.throw)
def change_image(self, image):
print('changing image')
self.canvas.itemconfig(self.image_id, image=image)
class Dice:
def __init__(self, master):
self.master = master
self.area = None # assign later
self.images = [
tkinter.PhotoImage(file='numberOne.png')
tkinter.PhotoImage(file='numberTwo.png')
tkinter.PhotoImage(file='numberThree.png')
tkinter.PhotoImage(file='numberFour.png')
tkinter.PhotoImage(file='numberFive.png')
tkinter.PhotoImage(file='numberSix.png')
]
def throw(self, event):
if self.area:
for i in range(8):
image = random.choice(self.images)
self.area.change_image(image)
self.master.update()
self.master.after(100)
# --- main ---
root = tkinter.Tk()
dice = Dice(root)
area = Area(root, dice)
dice.area = area
root.mainloop()
答案 1 :(得分：0)
from tkinter import *
class GUI(Tk):
def __init__(self):
super().__init__()
self.geometry("600x750")
self.title("Calculator")
self.scvalue = StringVar()
self.scvalue.set("")
self.screen = Entry(textvar=self.scvalue,font=("Impact",30,"bold"),relief="groove")
self.screen.pack(fill=X,ipadx=8, pady=10, padx=10)
self.frame = Frame(self, bg="grey")
self.frame.pack()
# First row
self.button = Button(self.frame,text="9", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="8", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="7", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.frame = Frame(self, bg="grey")
self.frame.pack()
#second row
self.button = Button(self.frame,text="6", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="5", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="4", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.frame = Frame(self, bg="grey")
self.frame.pack()
#third row
self.button = Button(self.frame,text="3", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=7,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="2", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=7,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="1", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=7,pady=3)
self.button.bind("<Button-1>",self.click)
self.frame = Frame(self, bg="grey")
self.frame.pack()
#fourth row
self.button = Button(self.frame,text="0", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="00", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text=".", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.frame = Frame(self, bg="grey")
self.frame.pack()
#fifth row
self.button = Button(self.frame,text="+", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=10,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="-", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=10,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="*", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=10,pady=3)
self.button.bind("<Button-1>",self.click)
self.frame = Frame(self, bg="grey")
self.frame.pack()
#sixth row
self.button = Button(self.frame,text="%", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="C", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
self.button = Button(self.frame,text="=", padx="15",font=("Impact",30,"bold"),bd=10,relief="groove")
self.button.pack(side=LEFT,padx=5,pady=3)
self.button.bind("<Button-1>",self.click)
def click(self,event):
self.text = event.widget.cget("text")
if self.text == '=':
if self.scvalue.get().isdigit():
self.value=self.scvalue.get()
else:
try:
#eval => evauluate expression
self.value = eval(self.screen.get())
self.scvalue.set(self.value)
self.screen.update()
except Exception as e:
self.scvalue.set("Error....")
self.screen.update()
pass
elif self.text=='C':
self.scvalue.set("")
self.screen.update()
else:
self.scvalue.set(self.scvalue.get()+self.text)
self.screen.update()
root = GUI()
root.mainloop()