为什么我的代码只打印 x 和 y 一次？

Question

I am trying to be able to move the turtle to my mouse click than print x and y.

import turtle

tim = turtle.Turtle()
tim.shape('turtle')
screen = tim.getscreen()

def getPos():
# this should move turtle to mouse click and print coords
    screen.onscreenclick(tim.goto)
    print(tim.xcor(), tim.ycor())

def main():
# once I run, it prints coords but once I move turtle it does not
    getPos()
    screen.mainloop()
    turtle.bye()
    
main()

Once I run my program, it prints x and y. However, once I move the turtle with a mouse click, it does not print the coordinates.

Answer 1

You've completely misunderstood how screen click events work in Python turtle. When it comes to event handing, you need to review the documentation, you can't simply go by function names.

You don't ask for a click, instead you register a function that will be called if/when the user clicks:

from turtle import Screen, Turtle

def gotoPos(x, y):
    tim.setheading(tim.towards(x, y))
    tim.goto(x, y)
    print(x, y)

tim = Turtle()
tim.shape('turtle')

screen = Screen()
screen.onscreenclick(gotoPos)

screen.mainloop()