diff --git a/db/gateway1.db b/db/gateway1.db
new file mode 100644
index 0000000..b26e007
Binary files /dev/null and b/db/gateway1.db differ
diff --git a/do_send_data.go b/do_send_data.go
index e69527a..f8eae47 100644
--- a/do_send_data.go
+++ b/do_send_data.go
@@ -92,7 +92,9 @@ func build_data(code int, data []Device) []byte {
 		case "其他":
 			bad++
 		}
-		satisfaction_data.SATISFACTION = good / (good + bad)
+		var data float64
+		data = good / (good + bad)
+		satisfaction_data.SATISFACTION = Round(data, 2)
 		data_buf, _ := json.Marshal(R_data)
 		return data_buf
 	}
diff --git a/loadconfig.go b/loadconfig.go
index 6e5310d..9d1fbb8 100644
--- a/loadconfig.go
+++ b/loadconfig.go
@@ -13,7 +13,7 @@ type Traffic struct {
 }
 
 type Satisfaction struct {
-	SATISFACTION float32 `json:"satisfaction"`
+	SATISFACTION float64 `json:"satisfaction"`
 }
 
 type Conf struct {
diff --git a/router.go b/router.go
index 1e0935e..7b2c414 100644
--- a/router.go
+++ b/router.go
@@ -4,6 +4,7 @@ import (
 	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
 	_ "github.com/mattn/go-sqlite3"
+	"math"
 	"net/http"
 	"strconv"
 )
@@ -163,10 +164,17 @@ func renliu_api(c *gin.Context) {
 }
 
 func pj_api(c *gin.Context) {
-	satisfaction_data.SATISFACTION = good / (good + bad)
+	var data float64
+	data = good / (good + bad)
+	satisfaction_data.SATISFACTION = Round(data, 2)
 	c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "data": satisfaction_data})
 }
 
+func Round(f float64, n int) float64 {
+	n10 := math.Pow10(n)
+	return math.Trunc((f+0.5/n10)*n10) / n10
+}
+
 type Seat_data struct {
 	POSITIONLIST   []interface{} `json:"positionList"`
 	HASPERSONLIST  []interface{} `json:"hasPersonList"`