code: public Map<String, String> pappayapplyBuild() {
  		Map<String, String> map = new HashMap<String, String>();
  		map.put("appid", getAppId());
  		map.put("mch_id", getMchId());
  		map.put("nonce_str", getNonceStr());
  		map.put("body", getBody());
  		map.put("attach", getAttach());
  		map.put("out_trade_no", getOutTradeNo());
  		map.put("total_fee", getTotalFee());
  		map.put("spbill_create_ip", getSpbillCreateIp());
  		map.put("notify_url", getNotifyUrl());
  		map.put("trade_type", getTradeType().name());
  		map.put("contract_id", getContractId());
  		map.put("sign", PaymentKit.createSign(map, getPaternerKey()));
  		return map;
  	}
docs: 构建申请扣款的Map
  
  @return 申请扣款的Map