ַзָĿַ

Mid(string, start[, length])

string 
ַʽзַ string  Null򷵻 Null 
Start 
string бȡֵַĿʼλá start  string ַĿMid 㳤ַ ("") 
Length 
ҪصַʡԻ length ıַ start ַַд start ַַ 
˵
Ҫж string ַĿʹ Len 

ʾ Mid ַдӵĸַʼַ

Dim MyVar
MyVar = Mid("VBűis fun!", 4, 6) 'MyVar  "Script"
ע   MidB ַеֽһʹáַָֽ
Ҫ
汾 1
