（1）按规则拼单词,并转换成二元式形式

（2）删除注释行

（3）删除空白符 (空格、回车符、制表符)

（4）列表打印源程序，按照源程序的行打 印，在每行的前面加上行号，并且打印出每行包含的记号的二元形式

(5)发现并定位错误

-(1) The rules spell the word, and convert it to binary-type form (2) remove the comment line (3) remove whitespace (spaces, carriage returns, tabs) (4) a list of print source, according to source line printing, in front of each line with line number and print out the sign of each row contains the binary form (5) find and locate errors