JSSDKHelperGetcardExtSign 方法

public static string GetcardExtSign(
	string api_ticket,
	string timestamp,
	string card_id,
	string nonce_str = "",
	string code = "",
	string openid = ""
)

Public Shared Function GetcardExtSign ( 
	api_ticket As String,
	timestamp As String,
	card_id As String,
	Optional nonce_str As String = "",
	Optional code As String = "",
	Optional openid As String = ""
) As String