摘要： mportjava.io.File;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.FileOutputStream;importjava.io.IOException;importjava.util.ArrayList;importjava.util.Arrays;importjava.util.Iterator;importjava.util.Random;/*** Purely informational so use at your own risk, it is not o 阅读全文