import numpy as np
import cv2 as cv

##picpath=input()
picpath="E://pic//1.png"
##  定义显示函数(窗口name，图片路径)
def picpath_play(name,picpath):

    img=cv.imread(picpath)
    cv.imshow(name,img)
    cv.waitKey(0)
    cv.destroyAllWindows()

picpath_play("based on path",picpath)