diff --git a/core/store.go b/core/store.go
index 1bf6fa4..b4c300f 100644
--- a/core/store.go
+++ b/core/store.go
@@ -1,7 +1,9 @@
 package core
 
 import (
+	"encoding/json"
 	"fmt"
+	"reflect"
 	"strconv"
 
 	"github.com/boltdb/bolt"
@@ -118,3 +120,45 @@ var Int = func(s string) int {
 	i, _ := strconv.Atoi(s)
 	return i
 }
+
+func (bucket Bucket) Create(i interface{}) error {
+	s := reflect.ValueOf(i).Elem()
+	id := s.FieldByName("ID")
+	return db.Update(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(bucket))
+		if b == nil {
+			b, _ = tx.CreateBucket([]byte(bucket))
+		}
+		sq, _ := b.NextSequence()
+		id.SetInt(int64(sq))
+		buf, err := json.Marshal(i)
+		if err != nil {
+			return err
+		}
+		return b.Put(itob(sq), buf)
+	})
+}
+
+func itob(i uint64) []byte {
+	return []byte(fmt.Sprint(i))
+}
+
+func (bucket Bucket) First(i interface{}) {
+	id := reflect.ValueOf(i).Elem().FieldByName("ID").Int()
+	db.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(bucket))
+		if b == nil {
+			return nil
+		}
+		data := b.Get(itob(uint64(id)))
+		if len(data) == 0 {
+			return nil
+		}
+		json.Unmarshal(data, i)
+		return nil
+	})
+}
+
+// func (bucket Bucket) Find(o interface{}) {
+
+// }
diff --git a/develop/dwz/init.go b/develop/dwz/init.go
index 977e51a..d3ab160 100644
--- a/develop/dwz/init.go
+++ b/develop/dwz/init.go
@@ -1,13 +1,52 @@
 package dwz
 
 import (
+	"fmt"
+	"net/http"
+
 	"github.com/cdle/sillyGirl/core"
 	"github.com/gin-gonic/gin"
 )
 
+var dwz = core.NewBucket("dwz")
+
 func init() {
 	core.Server.GET("/dwz", func(c *gin.Context) {
-		addr := c.Param("addr")
-		c.String(200, addr)
+		url := c.Query("url")
+		dwz := getDwz(url)
+		c.String(200, dwz)
+	})
+	core.Server.GET("/d:id", func(c *gin.Context) {
+		id := c.Param("id")
+		c.Redirect(http.StatusMovedPermanently, getWz(id))
+	})
+	core.AddCommand("", []core.Function{
+		{
+			Rules: []string{"dwz ?"},
+			Handle: func(s core.Sender) interface{} {
+				return getDwz(s.Get())
+			},
+		},
 	})
 }
+
+type ShortUrl struct {
+	ID  int
+	Url string
+}
+
+func getDwz(url string) string {
+	su := &ShortUrl{
+		Url: url,
+	}
+	dwz.Create(su)
+	return dwz.Get("address", "https://4co.cc"+"/d"+fmt.Sprint(su.ID))
+}
+
+func getWz(id string) string {
+	su := &ShortUrl{
+		ID: core.Int(id),
+	}
+	dwz.First(su)
+	return fmt.Sprint(su.Url)
+}