StringExToChar 方法

public static char ToChar(
	this string s,
	char def = ''
)

<ExtensionAttribute>
Public Shared Function ToChar ( 
	s As String,
	Optional def As Char = ""C
) As Char

[<ExtensionAttribute>]
static member ToChar : 
        s : string * 
        ?def : char 
(* Defaults:
        let _def = defaultArg def ''
*)
-> char