1.ΪʲôҪ?
      ͱԺַʽڴУڱҪʱʵúʵ,ʺϵķʽ,Ӷռ˷ѣҲߴִЧʡ      

2.Ϊ¼ָͣдС
99(Byte)"Ϻͷ"(String)True(Boolean)-23.58(Double)99999(Long)#2/28/2013#(Date)"459" (String)=128*6(Integer)

3.Զֵݱֵ?
         Ʋͬ

4.5ԭʲô
Const a As String = Range("a1").Value
Dim Sheet1 As Range  ƲVBAıһ
Set Rng = Worksheet(1)
dim STr as String = 112 ʹ
Const Tim As Date = "#2013/8/9 14:59:80#"

5.ϸڱ̹ȷЩơ
            ʡʱռ䣬ִЧ

6.˵´Ϊʲô?޸Ĵٳ?
MsgBox 500 * 500
       ʽ500 * 500еһ500ʶΪIntegerͣͬʱҲʽļԤȷͬInteger,ʽļΪ250000Integer32767ڼInteger͵,յִʧ.
 MsgBox CLng(500) * 500


7.ʶͣ
   ݱʶ
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