有如下VB程序段:
a(1)=58:a(2)=38:a(3)=46:a(4)=40:a(5)=58
a(6)=30:a(7)=48:a(8)=50:a(9)=36:a(10)=56
For i=1 To 10
b(a(i) Mod 10)=b(a(i) Mod 10)+1
Next i
s=""
For i=0 To 9
If b(i)>0 Then s=s+""+Str(i)+":"+Str(b(i))
Next i
数组b各元素初值为0,执行该程序段,s的值是
| A.0:3 6:3 8:4 | B.8:4 6:3 0:3 |
| C.5:4 4:3 3:4 | D.3:4 4:3 5:4: |