程序代码：

create cursor b1 (m1 n(1))
insert into b1 values (0)
insert into b1 values (1)
insert into b1 values (2)
insert into b1 values (8)
insert into b1 values (3)
insert into b1 values (4)

[此贴子已经被作者于2021-9-17 11:25编辑过]

程序代码：

create cursor b1 (m1 c(1))
insert into b1 values ("")
insert into b1 values ("1")
insert into b1 values ("N")
insert into b1 values ("8")
insert into b1 values ("M")
insert into b1 values ("5")