设有十个学生的成绩分别是76，69，84，90，73，88，99，63，100，80。试编制一个子程序统计60—69分，70—79分，80-89分,90-99分的人数并分别存放到S6，S7，S8，S9的单元中。-There are dozens of student achievement are 76,69,84,90,73,88,99,63,100,80. The preparation of a statistical test subroutine 60-69 hours ,70-79 minutes ,80-89 sub-90-99 the number of points, respectively, deposited to the S6, S7, S8, S9 of the unit.