添加Round方法

utils/utils.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"github.com/lianggx6/goutf16"
 	"io"
+	"math"
 	"math/rand"
 	"net/http"
 	"os"
@@ -386,4 +387,10 @@ func FileExist(file string) bool {
 	}
 
 	return true
+}
+
+func Round(num float64) int {
+	num += 0.5
+	num = math.Floor(num)
+	return int(num)
 }