MapReduce的key是怎么生成的，字节长度+1为当前行的key

Posted 2022-08-27 二十六画生的博客

        String s2 = "On the top of the Crumpetty Tree";
        System.out.println(s2.getBytes().length);//32

        String s3 = "The Quangle Wangle sat,";
        System.out.println(s3.getBytes().length);//23