## 簽名驗證工具 請求地址:`http://api.zhongwuyun.com` ~~~[api] post:/sign *string:deviceid#設備號 *string:devicesecret#設備秘鑰 *string:printdata#打印內容 <<< success { "errNum": 0, "retMsg": "success", } <<< error { "errNum": 2, "retMsg": "驗證簽名失敗", } ~~~ >> 簽名算法見目錄