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Fucntioin

     Open up and listen to the Picc card with the previous cards interaction not closed. And return searching resutl.

     Paremeter

ParaName

Type

Description

null

 

 

 

 

 

 

     Return value

     

Return value

Description

int

card type, if card is not found, 0 will be returned, if error, -1 will be returned