程序中自定义缓冲区AREA1，其中存放20个有序的无符号字节型数据（至少有3个重复数据），编程序将其传送到自AREA2开始的单元中，要求传送后的数据不重复出现，并通过查看内存验证结果的正确性。把有序的无符号字节型数据换成带符号字型数据，实现以上功能。-Custom data buffer program AREA1, which store 20 ordered unsigned byte data type (at least three duplicate data), programmed to transfer it to the unit since the beginning AREA2, the request is sent after not repeat appear and verify the results by looking at the memory correctness. The orderly unsigned byte data replaced with a symbol font data to achieve the above functions.