diff --git a/exists.go b/exists.go
index 1ab1681..4985fe8 100644
--- a/exists.go
+++ b/exists.go
@@ -5,8 +5,8 @@ import (
 )
 
 //exists
-func Exists(key string) (bool, error) {
-	c := pool.Get()
+func Exist(key string) (bool, error) {
+	c := GetConn()
 	defer c.Close()
 
 	return redisdb.Bool(c.Do("EXISTS", key))
@@ -14,8 +14,8 @@ func Exists(key string) (bool, error) {
 }
 
 //hexists
-func HExists(key string) (bool, error) {
-	c := pool.Get()
+func HExist(key string) (bool, error) {
+	c := GetConn()
 	defer c.Close()
 
 	return redisdb.Bool(c.Do("HEXISTS", key))
diff --git a/hash.go b/hash.go
index f6d2967..fafb9f8 100644
--- a/hash.go
+++ b/hash.go
@@ -112,8 +112,8 @@ func HGetList(key string) ([]string, error) {
 	// var info map[string]string
 	var all []string
 
-	if len(values) > 0 {
-		for key, item := range values {
+	if len(reply) > 0 {
+		for key, item := range reply {
 			if (key+1)%2 == 0 { //只处理偶数位
 				all = append(all, string(item))
 			}
diff --git a/init.go b/init.go
index 6092660..26ebbe1 100644
--- a/init.go
+++ b/init.go
@@ -3,20 +3,30 @@ package redis
 import (
 	"log"
 	"time"
+
 	redisdb "github.com/gomodule/redigo/redis"
 )
 
 // 定义redis链接池
 var Pool *redisdb.Pool
 var redisServerUrl string = "127.0.0.1:6379"
+
 // func init() {
 // 	if Pool == nil {
 // 		RedisInit()
 // 	}
 // }
 
+func Conn(server_url ...string) {
+	var url string = "127.0.0.1:6379"
+	if len(server_url) > 0 {
+		url = server_url[0]
+	}
+	RedisInit(url)
+}
+
 // 初始化redis链接池
-func RedisInit(serverUrl string,max ...int) {
+func RedisInit(serverUrl string, max ...int) {
 
 	var MaxActive, MaxIdle int
 	if len(max) > 0 {
diff --git a/set.go b/set.go
index 5714dd0..6941fc9 100644
--- a/set.go
+++ b/set.go
@@ -1,8 +1,6 @@
 package redis
 
 import (
-	"errors"
-
 	redisdb "github.com/gomodule/redigo/redis"
 )
 
@@ -93,83 +91,3 @@ func SMembers(key string) ([]byte, error) {
 	return reply, err
 
 }
-
-func ZAdd(key, score, member string) (int64, error) {
-	c := GetConn()
-
-	reply, err := c.Do("ZADD", key, score, member)
-	CloseConn(c)
-
-	if err != nil {
-		return 0, err
-	} else {
-		return redisdb.Int64(reply, nil)
-	}
-
-}
-
-func ZIncrBy(key, inc, member string) (int64, error) {
-	c := GetConn()
-
-	reply, err := c.Do("ZINCRBY", key, inc, member)
-	CloseConn(c)
-
-	if err != nil {
-		return 0, err
-	} else {
-		return redisdb.Int64(reply, nil)
-	}
-
-}
-
-func ZRange(key string, start, stop int64) ([]map[string]string, error) {
-	c := GetConn()
-	defer CloseConn(c)
-	values, err := redisdb.Values(c.Do("ZRANGE", key, start, stop, "WITHSCORES"))
-	if err != nil {
-		return nil, err
-	}
-	if len(values)%2 != 0 {
-		return nil, errors.New("redigo: ZRange expects even number of values result")
-	}
-	var l []map[string]string
-	for i := 0; i < len(values); i += 2 {
-		key, okKey := values[i].([]byte)
-		value, okValue := values[i+1].([]byte)
-		if !okKey || !okValue {
-			return nil, errors.New("redigo: ZRange key not a bulk string value")
-		}
-		l = append(l, map[string]string{
-			"member": string(key),
-			"score":  string(value),
-		})
-	}
-
-	return l, nil
-
-}
-
-func ZScan(key, field string, len int64) ([]string, error) {
-	c := GetConn()
-	defer CloseConn(c)
-
-	zscanResult, err := redisdb.Values(c.Do("ZSCAN", key, "0", "MATCH", field, "COUNT", len))
-
-	if err != nil {
-		return nil, err
-	}
-
-	var cursor int
-	var membersAndScores []string
-	var member []string
-	redisdb.Scan(zscanResult, &cursor, &membersAndScores)
-
-	for i, v := range membersAndScores {
-		if i%2 == 0 {
-			member = append(member, v)
-		}
-	}
-
-	return member, nil
-
-}
diff --git a/zset.go b/zset.go
new file mode 100644
index 0000000..e09964b
--- /dev/null
+++ b/zset.go
@@ -0,0 +1,211 @@
+package redis
+
+import (
+	"errors"
+
+	redisdb "github.com/gomodule/redigo/redis"
+)
+
+/**
+ * 集合成员数量
+ */
+func ZCard(key interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZCARD", key)
+
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+}
+
+/*
+ * 存值
+ * key 域
+ * member 成员
+ * score 分值
+ */
+func ZAdd(key string, score, member interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZADD", key, score, member)
+	CloseConn(c)
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+
+}
+
+/*
+ * 删除hash值
+ */
+func ZRem(key, member interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZREM", key, member)
+
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+}
+
+/*
+ * 区间数量
+ * key 域
+ * min/max 最小/最大值
+ */
+func ZCount(key string, min, max interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZCOUNT", key, min, max)
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+
+}
+
+/*
+ * 自增
+ * key 域
+ * member 成员
+ * inc 分值
+ */
+func ZIncrBy(key string, inc, member interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZINCRBY", key, inc, member)
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+
+}
+
+func ZRange(key string, start, stop int64) ([]map[string]string, error) {
+	c := GetConn()
+	defer CloseConn(c)
+	values, err := redisdb.Values(c.Do("ZRANGE", key, start, stop, "WITHSCORES"))
+	if err != nil {
+		return nil, err
+	}
+	if len(values)%2 != 0 {
+		return nil, errors.New("redigo: ZRange expects even number of values result")
+	}
+	var l []map[string]string
+	for i := 0; i < len(values); i += 2 {
+		key, okKey := values[i].([]byte)
+		value, okValue := values[i+1].([]byte)
+		if !okKey || !okValue {
+			return nil, errors.New("redigo: ZRange key not a bulk string value")
+		}
+		l = append(l, map[string]string{
+			"member": string(key),
+			"score":  string(value),
+		})
+	}
+
+	return l, nil
+
+}
+
+func ZScan(key, field string, len int64) ([]string, error) {
+	c := GetConn()
+	defer CloseConn(c)
+
+	zscanResult, err := redisdb.Values(c.Do("ZSCAN", key, "0", "MATCH", field, "COUNT", len))
+
+	if err != nil {
+		return nil, err
+	}
+
+	var cursor int
+	var membersAndScores []string
+	var member []string
+	redisdb.Scan(zscanResult, &cursor, &membersAndScores)
+
+	for i, v := range membersAndScores {
+		if i%2 == 0 {
+			member = append(member, v)
+		}
+	}
+
+	return member, nil
+
+}
+
+/*
+ * 回有序集合中指定成员的索引(从小到大排名)
+ * key 域
+ * member 成员
+ */
+func ZRank(key string, member interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZRANK", key, member)
+
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+
+}
+
+/*
+ * 有序集合中指定成员的索引(从大到小排名)
+ * key 域
+ * member 成员
+ */
+func ZRevrank(key string, member interface{}) (int64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZREVRANK", key, member)
+
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Int64(reply, nil)
+	}
+
+}
+
+/*
+ * 指定成员的分数
+ * key 域
+ * member 成员
+ */
+func ZScore(key string, member interface{}) (float64, error) {
+	c := GetConn()
+
+	reply, err := c.Do("ZSCORE", key, member)
+
+	CloseConn(c)
+
+	if err != nil {
+		return 0, err
+	} else {
+		return redisdb.Float64(reply, nil)
+	}
+
+}
diff --git a/zset_test.go b/zset_test.go
new file mode 100644
index 0000000..b1816af
--- /dev/null
+++ b/zset_test.go
@@ -0,0 +1,41 @@
+package redis
+
+import (
+	"testing"
+)
+
+func Test_Zset(t *testing.T) {
+	Conn()
+	ret3, err := ZAdd("zset", 9, 9)
+	t.Log(ret3)
+	t.Log(err)
+
+	ret3, err = ZCard("zset")
+	t.Log(ret3)
+	t.Log(err)
+
+	// ret3, err = ZRem("zset", 9)
+	// t.Log(ret3)
+	// t.Log(err)
+
+	ret3, err = ZCount("zset", 0, 100)
+	t.Log(ret3)
+	t.Log(err)
+
+	ret3, err = ZIncrBy("zset", 10, 9)
+	t.Log(ret3)
+	t.Log(err)
+
+	ret3, err = ZRank("zset", 9)
+	t.Log(ret3)
+	t.Log(err)
+
+	ret3, err = ZRevrank("zset", 9)
+	t.Log(ret3)
+	t.Log(err)
+
+	ret4, err := ZScore("zset", 9)
+	t.Log(ret4)
+	t.Log(err)
+
+}