tkinter同时使用两个键 [英] tkinter using two keys at the same time
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问题描述
因此,tkinker一次只能使用一个键. 在这个例子中,我不能说同时向左和向上移动. 如果愿意,我将如何去做?
So tkinker can only use one key at a time. I am unable to say move to the left and up at the same time with this example. How would i go about doing it if I wanted to?
import tkinter
root = tkinter.Tk()
root.title('test')
c= tkinter.Canvas(root, height=300, width=400)
c.pack()
body = c.create_oval(100, 150, 300, 250, fill='green')
def key(event):
OnKeyDown(event.char)
print(event.char)
def MoveLeft(evenr)
c.move(body, -10, 0)
def MoveRight(event):
c.move(body, 10, 0)
def MoveUp(event):
c.move(body, 0, 10)
def MoveDown(event):
c.move(body, 0, -10)
root.bind('<KeyPress-Left>', MoveLeft)
root.bind('<KeyPress-Right>', MoveRight)
root.bind('<KeyPress-Up>', MoveUp)
root.bind('<KeyPress-Down>', MoveDown)
就个人而言,我也不想不必将我的按键绑定"到功能上,我也想使用这些按键来执行其他操作(即:如果我同时按住shift键并向上移动,则使其移动得更快.时间)可以修补匠识别出您预先分配两个键或同时按住两个键吗?
Personally I would also prefer to not have to "bind" my keys to functions as well as I also would like to use the keys to preform other actions (ie: make it move faster if I hold shift and up at the same time) Can tinker recognize when you pre-assign two keys or hold two keys at the same time?
推荐答案
就像这样:
from Tkinter import *
root = Tk()
var = StringVar()
a_label = Label(root,textvariable = var ).pack()
history = []
def keyup(e):
print e.keycode
if e.keycode in history :
history.pop(history.index(e.keycode))
var.set(str(history))
def keydown(e):
if not e.keycode in history :
history.append(e.keycode)
var.set(str(history))
frame = Frame(root, width=200, height=200)
frame.bind("<KeyPress>", keydown)
frame.bind("<KeyRelease>", keyup)
frame.pack()
frame.focus_set()
root.mainloop()
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