StringExToDateTimeEx 方法

public static DateTime ToDateTimeEx(
	this string s,
	string formatString,
	DateTime def = default
)

<ExtensionAttribute>
Public Shared Function ToDateTimeEx ( 
	s As String,
	formatString As String,
	Optional def As DateTime = Nothing
) As DateTime

[<ExtensionAttribute>]
static member ToDateTimeEx : 
        s : string * 
        formatString : string * 
        ?def : DateTime 
(* Defaults:
        let _def = defaultArg def new DateTime()
*)
-> DateTime