[英]Turtle graphics - How do I control when the window closes?
I have a small python script which draws some turtle graphics.我有一个小的 python 脚本,它绘制了一些海龟图形。 When my script has finished running, the turtle screen automatically closes, so to be able to see the graphics for a while I have to use time.sleep(5)
at the end of the script to delay the closing.当我的脚本运行完成后,乌龟屏幕会自动关闭,所以为了能够看到一段时间的图形,我必须在脚本末尾使用time.sleep(5)
来延迟关闭。
Is there any way I can make this more dynamic, ie tell python that I want to control the closing of the window myself?有什么办法可以让这更加动态,即告诉 python 我想自己控制 window 的关闭? I don't mind if the script can't do anything else while waiting for my command, but I'd prefer if I didn't have to go to the console for a read()
or something.我不介意脚本在等待我的命令时是否不能做任何其他事情,但如果我不需要 go 到控制台进行read()
或其他操作,我会更喜欢。 Ideally, the canvas should stay open even after the script finishes running, but I am OK with a solution that halts the script until I close the window that holds the canvas (or click the canvas, or whatever...). Ideally, the canvas should stay open even after the script finishes running, but I am OK with a solution that halts the script until I close the window that holds the canvas (or click the canvas, or whatever...).
How do I accomplish this?我该如何做到这一点?
Just useturtle.done()
or turtle.Screen().exitonclick()
as a last command of your turtle program.只需使用turtle.done()
或turtle.Screen().exitonclick()
作为turtle 程序的最后一个命令。
import turtle
turtle.forward(100)
turtle.left(90)
turtle.forward(100)
# etc.
turtle.getscreen()._root.mainloop() # <-- run the Tkinter main loop
(edit: turtle.done()
as suggested by hua below is less ugly.) (编辑:下面的hua建议的turtle.done()
不那么难看。)
simply use the mainloop() function imported from turtle's module itself..只需使用从海龟模块本身导入的 mainloop() function ..
import turtle
#Draw a square
for i in range(4):
turtle.forward(200)
turtle.left(90)
#calling for the mainloop()
turtle.mainloop()
Try adding input()
at the end of your code.尝试在代码末尾添加input()
。
This waits for several clicks - and draws a spiral while you click - until it decides to exit on the last click:这会等待几次点击 - 并在您点击时绘制一个螺旋线 - 直到它决定在最后一次点击时退出:
import turtle
win = turtle.Screen()
win.bgcolor("white")
tess = turtle.Turtle()
tess.speed(0)
tess.color("blue")
tess.pensize(5)
offSet=30
def doNextEvent(x,y):
global offSet
global win
tess.forward(20)
tess.left(1+offSet)
offSet=offSet-2
if(offSet<1):
win.exitonclick()
win.onclick(doNextEvent)
win.listen()
win.mainloop()
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.