window下批量重命名指定文件夹下的文件。有两种方式：txt的可以读取文件头几个字符作为新文件名；也可以按照从0开始，持续加1作为文件名-window under the Batch rename files under the specified folder. There are two ways: txt files can be read the first few characters as the new file name can follow starting from 0,