以51指令编写的一小段程序，这是一道软件测试题，可以用来测试你是否适合从事单片机软件工作，程序并不完整，但并不影响你的思维，目前已有1000人做过，但答对的不超过10人，你想试试吗-51 instructions written a short program, which is a software testing can be used to test the work that you fit in the SCM software, the program is not complete, but it does not affect your thinking, there are 1000 people did, but the correct answer of no more than 10 people, you want to try.