屏幕上查找指定图片之前用按键精灵写过一些游戏辅助，里面有个函数叫FindPic，就上在屏幕范围查找给定的一张图片，返回查找到的坐标位置。
　　现在，Java来实现这个函数类似的功能。(Before looking for the specified picture on the screen, wrote some game assistance with the button Sprite, and there was a function called FindPic, looking for a given picture on the screen range, and then returning the coordinates of the search.)