在python tkinter画布中移动对象 [英] Move object in python tkinter canvas
本文介绍了在python tkinter画布中移动对象的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
所以我有一艘潜艇:
from tkinter import *
HEIGHT = 500
WIDTH = 800
window = Tk()
window.title("Bubble Blaster")
c = Canvas(window, width=WIDTH, height=HEIGHT, bg="darkblue")
c.pack()
ship_id = c.create_polygon(5, 5, 5, 25, 30, 15, fill="red")
ship_id2 = c.create_oval(0, 0, 30, 30, outline="red")
而且我正在阅读一本关于如何使子移动的书,它是这样说的:
and Im reading a book on how to make the sub move, this is what it says:
def move_ship(event):
if event.keysym == "up":
c.move(ship_id, 0, -ship_spd)
c.move(ship_id2, 0, -ship_spd)
elif event.keysym == "Down":
c.move(ship_id, 0, ship_spd)
c.move(ship_id2, 0, ship_spd)
elif event.keysym == "Left":
c.move(ship_id, -ship_spd, 0)
c.move(ship_id2, -ship_spd, 0)
elif event.keysym == "Right":
c.move(ship_id, ship_spd, 0)
c.move(ship_id2, ship_spd, 0)
c.bind_all('<key', move_ship)
当我运行它时,它给了我一个错误:
PS.我在一个片段中这样做,因为 Ctrl+v 不会处理所有消息
When I run it, it gives me an error:
PS. Im doing it in a snippet because Ctrl+v wont do all of the message
<h4 style="color: red">Traceback (most recent call last):
File "C:\Users\Bloxy Craft\Desktop\Bubble Blaster.py", line 28, in <module>
c.bind_all('<key>', move_ship)
File "C:\Users\Bloxy Craft\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1257, in bind_all
return self._bind(('bind', 'all'), sequence, func, add, 0)
File "C:\Users\Bloxy Craft\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1200, in _bind
self.tk.call(what + (sequence, cmd))
_tkinter.TclError: bad event type or keysym "key"</h4>
有人可以帮我吗?
谢谢!
- Bloxy 工艺
Can someone help me?
Thanks!
- Bloxy Craft
推荐答案
喜欢 Bryan Oakley 说你需要将 '
'
.您还需要在代码中将 if event.keysym == "up":
替换为 if event.keysym == "Up":
(U in 'Up' 必须成为资本).孔代号为:
Like Bryan Oakley said you need to replace '<key'
with '<Key>'
. Also you need to replace if event.keysym == "up":
with if event.keysym == "Up":
in your code (U in 'Up' must be capital). Hole code is:
from tkinter import *
HEIGHT = 500
WIDTH = 800
window = Tk()
window.title("Bubble Blaster")
c = Canvas(window, width=WIDTH, height=HEIGHT, bg="darkblue")
c.pack()
ship_id = c.create_polygon(5, 5, 5, 25, 30, 15, fill="red")
ship_id2 = c.create_oval(0, 0, 30, 30, outline="red")
def move_ship(event):
if event.keysym == "Up":
c.move(ship_id, 0, -ship_spd)
c.move(ship_id2, 0, -ship_spd)
elif event.keysym == "Down":
c.move(ship_id, 0, ship_spd)
c.move(ship_id2, 0, ship_spd)
elif event.keysym == "Left":
c.move(ship_id, -ship_spd, 0)
c.move(ship_id2, -ship_spd, 0)
elif event.keysym == "Right":
c.move(ship_id, ship_spd, 0)
c.move(ship_id2, ship_spd, 0)
c.bind_all('<Key>', move_ship)
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