微信公众号支付请求入参(xml)：<xml><appid>wxbfffc35bd30367c1</appid><body>明月湖儿童票</body><mch_id>1558937871</mch_id><nonce_str>***************</nonce_str><notify_url>http://**************</notify_url><out_trade_no>242401050371866624408</out_trade_no><profit_sharing>N</profit_sharing><sign>********************</sign><sign_type>MD5</sign_type><spbill_create_ip>***.*.*.*</spbill_create_ip><sub_mch_id>1618869572</sub_mch_id><sub_openid>odUcwwb6uo6qEzV58w4eStR4LZsA</sub_openid><total_fee>1</total_fee><trade_type>JSAPI</trade_type></xml>
