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cai chuong trinh nay chang khac gi tren vtc.com.vn

thay cai moi cho nhanh

cac ban cho minh hoi lam sao de doc cac ki tu do minh nhap vao VD:01-14 se duoc doc la rezo, one,space(dau -),one, four
chang han.Dung C# va su dung Hashtable.
monh dc giup do nhe. thanks

add them mot file Appconfig va viet connection trong do la dc cho tat ca cac form
<appsetting
<add key="ten CSDL" value="server= ten Server; integrated security=true; Datbase= Ten DB"/>...

lam j co chuyen sinh ma tu dong
minh fai goi no ra chu