Dim cnn As ADODB.Connection和Dim cnn As new ADODB.Connection有什么不同?
请教个问题:
用ADO对象链接ACCESS时,一般都用
Dim cnn As new ADODB.Connection
Dim rst As new ADODB.Recordset
Dim cmd As New ADODB.Command
但也有不带new的,例如:
Dim cnn As ADODB.Connection
Dim rst As ADODB.Recordset
Dim cmd As ADODB.Command
还有在同一模块中定义,前面的语句不带new,后面的语句又带new,到底有什么差异?哪种定义方式正确、规范?