画布项目跟随鼠标指针移动_mouse_position函数_tkinter.py

"""
   mouse_position函数_tkinter.py
"""
from tkinter import *                   # 从tkinter模块导入所有命令

def mouse_position(root):
    """获取鼠标指针的坐标"""   
    
    x = root.winfo_pointerx()          # 鼠标指针相对于计算机屏幕的x坐标
    y = root.winfo_pointery()          # 鼠标指针相对于计算机屏幕的y坐标

    rx = root.winfo_rootx()            # 窗口到计算机屏幕最左边距离
    ry = root.winfo_rooty()            # 窗口到计算机屏幕最上边距离 
    x = x - rx                        
    y = y - ry      
  
    return x,y

root = Tk()
root.title('获取鼠标指针坐标tkinter')
root.config(bg='black')

cv = Canvas(root,width=480,height=360,bg='cyan',bd=0)
cv.pack()

img1 = PhotoImage(file='red.png')      # 新建图形对象(需要保持对它的引用)
red = cv.create_image((50,50),image=img1)

img2 = PhotoImage(file='blue.png')
blue = cv.create_image((100,100),image=img2)

while True:
    x,y = mouse_position(root)
    root.title(str(x) + "," + str(y))
    cv.moveto(blue,x,y)
    root.update()