public static void main(String[] args) {
		String srcPath = "D:\\test-b\\p-z\\";
		String desPath = "D:\\test-b\\1.txt";
		File file = new File(srcPath);
		String[] filelist = file.list();
		for (int i = 0; i < filelist.length; i++) {
			String srcPath2 = srcPath + filelist[i];
			// String desPath2 = desPath+str[i]+"-"+(j+1)+".txt";
			if (flag) {
				merge(srcPath2, desPath);
			}
			flag = true;
		}
	}