修改签名错误

utils/common.go

@@ -1018,8 +1018,10 @@ func GetSign(nonce, timestamp string) (sign string) {
 	sort.Strings(keys)
 	var signStr string
 	for _, k := range keys {
-		signStr += k + "&" + signStrMap[k]
+		signStr += k + "=" + signStrMap[k] + "&"
 	}
+	signStr = strings.Trim(signStr, "&")
+	fmt.Println("signStr:" + signStr)
 	sign = HmacSha256ToBase64(Secret, signStr)
 	return
 }