DapperDbHelperExecuteScalarT 方法

public static T ExecuteScalar<T>(
	string sql,
	Object param = null,
	IDbTransaction transaction = null,
	int? commandTimeout = null,
	CommandType? commandType = null
)

Public Shared Function ExecuteScalar(Of T) ( 
	sql As String,
	Optional param As Object = Nothing,
	Optional transaction As IDbTransaction = Nothing,
	Optional commandTimeout As Integer? = Nothing,
	Optional commandType As CommandType? = Nothing
) As T

static member ExecuteScalar : 
        sql : string * 
        ?param : Object * 
        ?transaction : IDbTransaction * 
        ?commandTimeout : Nullable<int> * 
        ?commandType : Nullable<CommandType> 
(* Defaults:
        let _param = defaultArg param null
        let _transaction = defaultArg transaction null
        let _commandTimeout = defaultArg commandTimeout null
        let _commandType = defaultArg commandType null
*)
-> 'T