Python 动画特金特
我试图写一个基本的tkinter示例,展示一个框在一个框架上伸展。此时,下面的代码将只打印最终结果,而不显示方框移动。如何修复代码,使其在不使用move之类的工具的情况下随时间工作,以便以后可以随时间修改形状Python 动画特金特,python,tkinter,animated,Python,Tkinter,Animated,我试图写一个基本的tkinter示例,展示一个框在一个框架上伸展。此时,下面的代码将只打印最终结果,而不显示方框移动。如何修复代码,使其在不使用move之类的工具的情况下随时间工作,以便以后可以随时间修改形状 from tkinter import Tk, Canvas, Frame, BOTH from time import sleep class Example(Frame): def __init__(self, parent): Frame.__init_
from tkinter import Tk, Canvas, Frame, BOTH
from time import sleep
class Example(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.parent.title("Board")
self.pack(fill=BOTH, expand=1)
self.canvas = Canvas(self)
self.ctr = 10
self.initUI()
def initUI(self):
print(self.ctr)
#The first four parameters are the x,y coordinates of the two bounding points.
#The top-left and the bottom-right.
r = self.canvas.create_rectangle((self.ctr * 10), 0, (self.ctr * 10 + 50), 50,
outline="#fb0", fill="#fb0")
'''
canvas.create_rectangle(50, 0, 100, 50,
outline="#f50", fill="#f50")
canvas.create_rectangle(100, 0, 150, 50,
outline="#05f", fill="#05f")
'''
self.canvas.pack(fill=BOTH, expand=1)
if self.ctr > 0:
self.updateUI()
def updateUI(self):
self.ctr -= 1
sleep(1)
self.initUI()
def main():
root = Tk()
root.geometry("400x100+300+300")
ex = Example(root)
root.mainloop()
if __name__ == '__main__':
main()
这应该可以让你达到一半(你需要修正缩进,偏移量不正确,计数器不能复位)。将来,请确保在使用GUI的事件循环时不要调用sleep。大多数GUI都有一种方法将某些内容挂接到它们的事件循环中(本例中是root.after调用)。我所做的只是让代码部分工作——这不应该被视为是惯用python的象征
from tkinter import Tk, Canvas, Frame, BOTH
from time import sleep
class Example(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.parent.title("Board")
self.pack(fill=BOTH, expand=1)
self.canvas = Canvas(self)
self.ctr = 10
def initUI(self):
print(self.ctr)
#The first four parameters are the x,y coordinates of the two bounding points.
#The top-left and the bottom-right.
r = self.canvas.create_rectangle((self.ctr * 10), 0, (self.ctr * 10 + 50), 50,
outline="#fb0", fill="#fb0")
'''
canvas.create_rectangle(50, 0, 100, 50,
outline="#f50", fill="#f50")
canvas.create_rectangle(100, 0, 150, 50,
outline="#05f", fill="#05f")
'''
self.canvas.pack(fill=BOTH, expand=1)
self.ctr += 1
if self.ctr > 0:
self.parent.after(1000, self.initUI)
def main():
root = Tk()
ex = Example(root)
root.geometry("400x100+300+300")
root.after(1000, ex.initUI)
root.mainloop()
if __name__ == '__main__':
main()