on error goto proc_err
dim a() as integer
dim b as integer
b=ubound(a)
msgbox "a不为空"
exit sub
proc_err:
if err.number=9 then msgbox "a为空"
exit sub
dim a() as integer
dim b as integer
b=ubound(a)
msgbox "a不为空"
exit sub
proc_err:
if err.number=9 then msgbox "a为空"
exit sub
解决方案 »
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