1.统一下单接口
~~~[api]
post:https://admin.nineopen.com/pay/pay
fee#交易金额（支付单位：分）
openid#openid
<<<
success
{
"state": 200,
"timeStamp": "1553136055",
"nonceStr": "PLrWwDOJuuPOpPNVkIwXbTMDsZXFDQRi",
"signType": "MD5",
"package": "prepay_id=wx2110405504516935e0e90cea3640555307",
"paySign": "0D6CDFCEC36D1873FF9DC0F9CB316BD9",
"out_trade_no": "I321360547394864"
}
<<<
error
~~~
