中文说明：这两天着迷goolge earth抓图，编写了一个拼图的程序，主要是用到了imread imwrite和对话框几个知识点，很简单的。
English Description：
In the past two days, I have been fascinated by goolge earth and compiled a jigsaw program, which mainly uses several knowledge points of imread imwrite and dialog box. It is very simple.