根据给定的程序进行调试，读懂每个句子的具体含义，打印输出结果。对原有程序进行修改，打印输出结果。并进行说明更改了哪部分，与原程序有哪些不同。-according to the procedure debugging and read every sentence of a specific meaning, print output. To amend the existing procedures, print output. And to say which part of the chan