'定义一个全局函数用来给字符串填充空格,补足位数
Public Function fillstr(str As String, num As Integer)
Do While Len(str) < num
str = str + " "
Loop
'return str '我用这个返回字符串会出错,怎么办

End Function
帮我改一下

'定义一个全局函数用来给字符串填充空格,补足位数
Public Function fillstr(str As String, num As Integer) As String
Do While Len(str) < num
str = str + " "
Loop
fillstr = str

End Function

现在对吗?