AUTO_DEDUCT.md

SIGN AUTO-DEDUCT

see details.

   import 'package:fluwx/fluwx.dart' as fluwx;
   fluwx.autoDeDuct(
           appId: "",
           mchId: "",
           planId: "",
           contractCode: "",
           requestSerial: "",
           contractDisplayAccount: "",
           notifyUrl: "",
           version: "",
           sign: "",
           timestamp: "",
           returnApp: '3');