~~~[api]
post:https://ychd.nineopen.com/wx/pay
fee#交易金额（单位：元）
openid#
<<<
success
{
"state": 200,
"timeStamp": "1550110834",
"nonceStr": "cVXoUOkVoTMNULigofQcByyXGpwIObcS",
"signType": "MD5",
"package": "prepay_id=wx141020394384884998931bca4019317917",
"paySign": "564FAE3DFD6DEFF79515112DC2F5C2FD",
"out_trade_no": "35308f06b83087c0c58278d1c353135f"
}
<<<
error
{
"state": 0,
"text": "错误",
"RETURN_CODE": "FAIL",
"RETURN_MSG": "openid参数长度有误"
}
~~~
