## 签名验证工具 请求地址:`http://api.zhongwuyun.com` ~~~[api] post:/sign *string:deviceid#设备号 *string:devicesecret#设备秘钥 *string:printdata#打印内容 <<< success { "errNum": 0, "retMsg": "success", } <<< error { "errNum": 2, "retMsg": "验证签名失败", } ~~~ >> 签名算法见目录