1.安排一个数据区,内存有若干个正数,负数和零.每类数的个数都不超过 9. 2.编写一个程序统计数据区中正数,负数和零的个数. 3.将统计结果在屏幕上显示.-1. Arrange a data area of memory has several positive, negative and zero. Number of each type of number is not more than nine.         2 Number