diff --git a/go.mod b/go.mod
index 2be6438..018983f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module git.tetele.net/tgo/redis
 
-go 1.17
+go 1.16
 
 require (
 	git.tetele.net/tgo/conf v0.48.0
diff --git a/go.sum b/go.sum
index b107184..0f964c4 100644
--- a/go.sum
+++ b/go.sum
@@ -11,7 +11,6 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/zset.go b/zset.go
index a4bd271..68128d9 100644
--- a/zset.go
+++ b/zset.go
@@ -42,6 +42,25 @@ func ZAdd(key string, score, member interface{}) (int64, error) {
 
 }
 
+/*
+ * 存值
+ * key 域
+ * member 成员
+ * score 分值
+ */
+func ZAddFloat(key string, score, member interface{}) (float64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZADD", key, score, member)
+	CloseConn(c)
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Float64(reply, nil)
+	}
+
+}
+
 /*
  * 删除hash值
  */
@@ -98,6 +117,26 @@ func ZIncrBy(key string, inc, member interface{}) (int64, error) {
 
 }
 
+/*
+ * 自增
+ * key 域
+ * member 成员
+ * inc 分值
+ */
+func ZIncrByFloat(key string, inc, member interface{}) (float64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZINCRBY", key, inc, member)
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Float64(reply, nil)
+	}
+
+}
+
 func ZRange(key string, start, stop int64) ([]map[string]string, error) {
 	c := GetConn()
 	defer CloseConn(c)