我们如何删除已经在 Tkinter 画布中创建的形状? [英] How do we delete a shape that's already been created in Tkinter canvas?
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问题描述
考虑:
from Tkinter import *
a = Tk()
canvas = Canvas(a, width = 500, height = 500)
canvas.pack()
canvas.create_rectangle(0, 0, 100, 100)
我们如何删除这个创建好的矩形?
How do we delete this rectangle that's been created?
这是关于我正在创建的游戏.这是一个简单的游戏,如果球击中了方块,方块就会消失.但如果我这样做:
This is in reference to a game I am creating. It's a simple game where if the ball hits the block, the block should disappear. But if I do something like this:
class Block:
def __init__(self,canvas,color):
self.canvas = canvas
self.id = canvas.create_rectangle(10, 10, 110, 20, fill=color )
self.id1 = canvas.create_rectangle(115, 10, 215, 20, fill=color)
self.id2 = canvas.create_rectangle(220, 10, 320, 20, fill=color)
self.id3 = canvas.create_rectangle(325, 10, 425, 20, fill=color)
self.id4 = canvas.create_rectangle(430, 10, 530, 20, fill=color)
self.id5 = canvas.create_rectangle(100, 150, 200, 160, fill=color)
self.id6 = canvas.create_rectangle(350, 150, 450, 160, fill=color)
self.x = 0
然后:
def hit_block(self,pos):
block_pos = self.canvas.coords(self.block.id)
List = [block_pos]
for i in List:
if pos[0] >= i[0] and pos[2] <= i[2]:
if pos[1] >= i[1] and pos[1] <= i[3]:
canvas.delete(block.id)
self.score()
global a
a += 1
return True
return False
它不起作用.球击中时如何删除块?
It doesn't work. How can I delete the block when the ball hits it?
推荐答案
将 create_rectangle()
赋值给一个变量,然后调用 canvas.delete()
在该变量上:
Assign the create_rectangle()
to a variable, and then call canvas.delete()
on that variable:
from Tkinter import *
a = Tk()
canvas = Canvas(a, width = 500, height = 500)
canvas.pack()
myrect = canvas.create_rectangle(0,0,100,100)
canvas.delete(myrect) #Deletes the rectangle
删除前的窗口:
删除后的窗口:
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