diff --git a/easymap/sync_normal.go b/easymap/sync_normal.go
index 6c1107d..c989189 100644
--- a/easymap/sync_normal.go
+++ b/easymap/sync_normal.go
@@ -1,8 +1,220 @@
 // Package easymap...
 //
-// Description : 内置的sync.Map
+// Description : 内置sync.Map + segment
 //
 // Author : go_developer@163.com<张德满>
 //
 // Date : 2021-02-24 2:08 下午
 package easymap
+
+import (
+	"sync"
+
+	"github.com/go-developer/gopkg/convert"
+)
+
+func NewSync() EasyMap {
+	return &syncMap{}
+}
+
+type syncMap struct {
+	data sync.Map
+}
+
+func (s *syncMap) Get(key interface{}) (interface{}, error) {
+	val, exist := s.data.Load(key)
+	if !exist {
+		return nil, keyNotFound(key)
+	}
+	return val, nil
+}
+
+func (s *syncMap) GetWithReceiver(key interface{}, dest interface{}) error {
+	var (
+		val interface{}
+		err error
+	)
+	if val, err = s.Get(key); nil != err {
+		return err
+	}
+	if err = convert.ConvertAssign(dest, val); nil != err {
+		return convertFail(err)
+	}
+	return nil
+}
+
+func (s *syncMap) GetUint(key interface{}) (uint, error) {
+	var (
+		result uint
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetUint8(key interface{}) (uint8, error) {
+	var (
+		result uint8
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetUint16(key interface{}) (uint16, error) {
+	var (
+		result uint16
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetUint32(key interface{}) (uint32, error) {
+	var (
+		result uint32
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetUint64(key interface{}) (uint64, error) {
+	var (
+		result uint64
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetInt(key interface{}) (int, error) {
+	var (
+		result int
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetInt8(key interface{}) (int8, error) {
+	var (
+		result int8
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetInt16(key interface{}) (int16, error) {
+	var (
+		result int16
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetInt32(key interface{}) (int32, error) {
+	var (
+		result int32
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetInt64(key interface{}) (int64, error) {
+	var (
+		result int64
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetFloat32(key interface{}) (float32, error) {
+	var (
+		result float32
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetFloat64(key interface{}) (float64, error) {
+	var (
+		result float64
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetBool(key interface{}) (bool, error) {
+	var (
+		result bool
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return false, err
+	}
+	return result, nil
+}
+
+func (s *syncMap) GetString(key interface{}) (string, error) {
+	var (
+		result string
+		err    error
+	)
+	if err = s.GetWithReceiver(key, &result); nil != err {
+		return "", err
+	}
+	return result, nil
+}
+
+func (s *syncMap) Set(key interface{}, value interface{}) {
+	s.data.Store(key, value)
+}
+
+func (s *syncMap) Del(key interface{}) {
+	s.data.Delete(key)
+}
+
+func (s *syncMap) Exist(key interface{}) bool {
+	_, exist := s.data.Load(key)
+	return exist
+}
+
+func (s *syncMap) GetAll() map[interface{}]interface{} {
+	result := make(map[interface{}]interface{})
+	s.data.Range(func(key, value interface{}) bool {
+		result[key] = value
+		return true
+	})
+	return result
+}
diff --git a/easymap/sync_normal_test.go b/easymap/sync_normal_test.go
new file mode 100644
index 0000000..275128b
--- /dev/null
+++ b/easymap/sync_normal_test.go
@@ -0,0 +1,21 @@
+// Package easymap...
+//
+// Description : easymap...
+//
+// Author : go_developer@163.com<张德满>
+//
+// Date : 2021-02-24 5:57 下午
+package easymap
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestSyncNormal(t *testing.T) {
+	syncMap := NewSync()
+	syncMap.Set("name", "zhangdeman")
+	syncMap.Set("age", 25)
+	syncMap.Set("height", 180)
+	fmt.Println(syncMap.GetAll())
+}