diff --git a/db.go b/db.go
index 1baace5..020668a 100644
--- a/db.go
+++ b/db.go
@@ -428,7 +428,9 @@ func (this *HoTimeDB) Select(table string, qu ...interface{}) []Map {
 	qs = append(qs, resWhere...)
 
 	res := this.Query(query, qs...)
-
+	if res == nil {
+		return []Map{}
+	}
 	return res
 
 }
diff --git a/dri/download/download.go b/dri/download/download.go
new file mode 100644
index 0000000..1ef1e19
--- /dev/null
+++ b/dri/download/download.go
@@ -0,0 +1,35 @@
+package download
+
+import (
+	"bytes"
+	"go.hoteas.com/hotime"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+)
+
+//下载文件
+func Down(url, path, name string) bool {
+
+	os.MkdirAll(path, os.ModeDir)
+	if hotime.Substr(path, len(path)-1, len(path)) != "/" {
+		path = path + "/"
+	}
+	out, err := os.Create(path + name)
+	e := hotime.Error{}
+	if err != nil {
+		e.SetError(err)
+		return false
+	}
+	defer out.Close()
+	resp, err := http.Get(url)
+	defer resp.Body.Close()
+	pix, err := ioutil.ReadAll(resp.Body)
+	_, err = io.Copy(out, bytes.NewReader(pix))
+	if err != nil {
+		e.SetError(err)
+		return false
+	}
+	return true
+}