diff --git a/mutable_xobject.go b/mutable_xobject.go
index be20a95..41f89af 100644
--- a/mutable_xobject.go
+++ b/mutable_xobject.go
@@ -4,6 +4,16 @@ type MutableXObject struct {
 	XObject
 }
 
+func NewMxoArray() *MutableXObject {
+	p:= new(MutableXObject)
+	return p
+}
+
+func NewMxoObject() *MutableXObject {
+	p:= new(MutableXObject)
+	return p
+}
+
 func (this *MutableXObject) PushXValue(val *XValue) *MutableXObject{
 	return this
 }
@@ -23,3 +33,7 @@ func (this *MutableXObject) SetXObject(key string, val *XObject) *MutableXObject
 func (this *MutableXObject) SetMutableXObject(key string, val *MutableXObject) *MutableXObject{
 	return this
 }
+
+func (this *MutableXObject) AsXObject() *XObject{
+	return &this.XObject
+}
diff --git a/sysutils.go b/sysutils.go
index f35e5aa..e88aa58 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -1,10 +1,12 @@
 package q5
 
-import "os"
-import "net"
-import "net/http"
-import "time"
-import "reflect"
+import (
+	"os"
+	"net"
+	"net/http"
+	"time"
+	"reflect"
+)
 
 func GetDaySeconds(seconds int64) int64 {
 	return 0
@@ -82,3 +84,8 @@ func IsNumberType(v interface{}) bool {
 		return false
 	}
 }
+
+func FormatUnixDateTime(sec int64) string {
+	strTime := time.Unix(sec, 0).Format("2006-01-02 15:04:05")
+	return strTime
+}
diff --git a/xvalue.go b/xvalue.go
index 34f19ff..5b2ae7a 100644
--- a/xvalue.go
+++ b/xvalue.go
@@ -19,6 +19,18 @@ type XValue struct
 	_val interface{}
 }
 
+func NewXInt32(val int32) *XValue {
+	p := new(XValue)
+	p.SetInt32(val)
+	return p
+}
+
+func NewXString(val string) *XValue {
+	p := new(XValue)
+	p.SetString(val)
+	return p
+}
+
 func (this *XValue) GetType() int8 {
 	if this._type == XVT_UNDEFINED {
 		return XVT_INT