【单选题】

以下程序段的作用是()

Private Sub Picture1_Click( )
Dim asci As Integer, i As Integer
i = 0
For asci = 32 To 126
Picture1.Print Tab(7 * i + 2); Chr(asci); "="; asci;
i = i + 1
If i = 7 Then i = 0: Picture1.Print
Next asci
A.打印ASCII码表，一行7个表达式
B.打印九九乘法表，一行7个表达式
C.打印ASCII码表，一行8个表达式
D.以上说法都不正确