diff --git a/g/container/gtype/gtype_test.go b/g/container/gtype/gtype_test.go
index 736d064e5..5785b9af0 100644
--- a/g/container/gtype/gtype_test.go
+++ b/g/container/gtype/gtype_test.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// go test *.go -bench=".*"
+// go test *.go -bench=".*" -benchmem
 
 package gtype
 
diff --git a/g/container/gvar/gvar_bench_test.go b/g/container/gvar/gvar_bench_test.go
new file mode 100644
index 000000000..160bbd9ce
--- /dev/null
+++ b/g/container/gvar/gvar_bench_test.go
@@ -0,0 +1,145 @@
+// Copyright 2018 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://gitee.com/johng/gf.
+
+// go test *.go -bench=".*" -benchmem
+
+package gvar
+
+import "testing"
+
+var vn = New(nil)
+
+func Benchmark_Set(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Set(i)
+    }
+}
+
+func Benchmark_Val(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Val()
+    }
+}
+
+func Benchmark_IsNil(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.IsNil()
+    }
+}
+
+func Benchmark_Bytes(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Bytes()
+    }
+}
+
+func Benchmark_String(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.String()
+    }
+}
+
+func Benchmark_Bool(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Bool()
+    }
+}
+
+func Benchmark_Int(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Int()
+    }
+}
+
+func Benchmark_Int8(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Int8()
+    }
+}
+
+func Benchmark_Int16(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Int16()
+    }
+}
+
+func Benchmark_Int32(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Int32()
+    }
+}
+
+func Benchmark_Int64(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Int64()
+    }
+}
+
+func Benchmark_Uint(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Uint()
+    }
+}
+
+func Benchmark_Uint8(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Uint8()
+    }
+}
+
+func Benchmark_Uint16(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Uint16()
+    }
+}
+
+func Benchmark_Uint32(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Uint32()
+    }
+}
+
+func Benchmark_Uint64(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Uint64()
+    }
+}
+
+func Benchmark_Float32(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Float32()
+    }
+}
+
+func Benchmark_Float64(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Float64()
+    }
+}
+
+func Benchmark_Ints(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Ints()
+    }
+}
+
+func Benchmark_Strings(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Strings()
+    }
+}
+
+func Benchmark_Floats(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Floats()
+    }
+}
+
+func Benchmark_Interfaces(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+        vn.Interfaces()
+    }
+}
diff --git a/g/database/gdb/gdb.go b/g/database/gdb/gdb.go
index aaeb3ce71..42080302b 100644
--- a/g/database/gdb/gdb.go
+++ b/g/database/gdb/gdb.go
@@ -19,6 +19,7 @@ import (
 	"gitee.com/johng/gf/g/os/gcache"
 	"gitee.com/johng/gf/g/util/grand"
 	_ "github.com/go-sql-driver/mysql"
+	"gitee.com/johng/gf/g/container/gvar"
 )
 
 const (
@@ -108,7 +109,7 @@ type Sql struct {
 }
 
 // 返回数据表记录值
-type Value []byte
+type Value = *gvar.Var
 
 // 返回数据表记录Map
 type Record map[string]Value
diff --git a/g/database/gdb/gdb_base.go b/g/database/gdb/gdb_base.go
index 811ed1ec4..48df5d1e1 100644
--- a/g/database/gdb/gdb_base.go
+++ b/g/database/gdb/gdb_base.go
@@ -19,6 +19,7 @@ import (
     "gitee.com/johng/gf/g/os/gtime"
     "time"
     "gitee.com/johng/gf/g/os/glog"
+    "gitee.com/johng/gf/g/container/gvar"
 )
 
 const (
@@ -195,10 +196,9 @@ func (db *Db) GetAll(query string, args ...interface{}) (Result, error) {
         row := make(Record)
         // 注意col字段是一个[]byte类型(slice类型本身是一个指针)，多个记录循环时该变量指向的是同一个内存地址
         for i, col := range values {
-            k := columns[i]
             v := make([]byte, len(col))
             copy(v, col)
-            row[k] = v
+            row[columns[i]] = gvar.New(v)
         }
         records = append(records, row)
     }
diff --git a/g/database/gdb/gdb_transaction.go b/g/database/gdb/gdb_transaction.go
index e911ce684..6d8281899 100644
--- a/g/database/gdb/gdb_transaction.go
+++ b/g/database/gdb/gdb_transaction.go
@@ -15,6 +15,7 @@ import (
     "gitee.com/johng/gf/g/os/gtime"
     "gitee.com/johng/gf/g/util/gconv"
     _ "github.com/go-sql-driver/mysql"
+    "gitee.com/johng/gf/g/container/gvar"
 )
 
 // 数据库事务对象
@@ -115,10 +116,9 @@ func (tx *Tx) GetAll(query string, args ...interface{}) (Result, error) {
         row := make(Record)
         // 注意col字段是一个[]byte类型(slice类型本身是一个指针)，多个记录循环时该变量指向的是同一个内存地址
         for i, col := range values {
-            k := columns[i]
             v := make([]byte, len(col))
             copy(v, col)
-            row[k] = v
+            row[columns[i]] = gvar.New(v)
         }
         //fmt.Printf("%p\n", row["typeid"])
         records = append(records, row)
diff --git a/g/database/gdb/gdb_type_value.go b/g/database/gdb/gdb_type_value.go
deleted file mode 100644
index 226701b44..000000000
--- a/g/database/gdb/gdb_type_value.go
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2018 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
-//
-// This Source Code Form is subject to the terms of the MIT License.
-// If a copy of the MIT was not distributed with this file,
-// You can obtain one at https://gitee.com/johng/gf.
-
-package gdb
-
-import (
-    "time"
-    "gitee.com/johng/gf/g/util/gconv"
-)
-
-func (v Value) IsNil()          bool            { return v == nil }
-func (v Value) Bytes()          []byte          { return []byte(v) }
-func (v Value) String()         string          { return string(v.Bytes()) }
-func (v Value) Bool()           bool            { return gconv.Bool(v.Bytes()) }
-
-func (v Value) Int()            int             { return gconv.Int(v.Bytes()) }
-func (v Value) Int8()           int8            { return gconv.Int8(v.Bytes()) }
-func (v Value) Int16()          int16           { return gconv.Int16(v.Bytes()) }
-func (v Value) Int32()          int32           { return gconv.Int32(v.Bytes()) }
-func (v Value) Int64()          int64           { return gconv.Int64(v.Bytes()) }
-
-func (v Value) Uint()           uint            { return gconv.Uint(v.Bytes()) }
-func (v Value) Uint8()          uint8           { return gconv.Uint8(v.Bytes()) }
-func (v Value) Uint16()         uint16          { return gconv.Uint16(v.Bytes()) }
-func (v Value) Uint32()         uint32          { return gconv.Uint32(v.Bytes()) }
-func (v Value) Uint64()         uint64          { return gconv.Uint64(v.Bytes()) }
-
-func (v Value) Float32()        float32         { return gconv.Float32(v.Bytes()) }
-func (v Value) Float64()        float64         { return gconv.Float64(v.Bytes()) }
-
-func (v Value) Time(format...string) time.Time       { return gconv.Time(v.Bytes(), format...) }
-func (v Value) TimeDuration()        time.Duration   { return gconv.TimeDuration(v.Bytes()) }
\ No newline at end of file
diff --git a/g/g.go b/g/g.go
index c39f16268..8ddabda0a 100644
--- a/g/g.go
+++ b/g/g.go
@@ -7,6 +7,11 @@
 
 package g
 
+import "gitee.com/johng/gf/g/container/gvar"
+
+// 框架动态变量，可以用该类型替代interface{}类型
+type Var   = gvar.Var
+
 // 常用map数据结构(使用别名)
 type Map   = map[string]interface{}
 
diff --git a/g/g_func.go b/g/g_func.go
index 3882bf213..bef7e7fd5 100644
--- a/g/g_func.go
+++ b/g/g_func.go
@@ -10,6 +10,7 @@ import (
     "gitee.com/johng/gf/g/net/ghttp"
     "gitee.com/johng/gf/g/util/gutil"
     "gitee.com/johng/gf/g/os/glog"
+    "gitee.com/johng/gf/g/container/gvar"
 )
 
 const (
@@ -22,6 +23,11 @@ const (
     LOG_LEVEL_CRIT = glog.LEVEL_CRIT
 )
 
+// 动态变量
+func NewVar(i interface{}, safe...bool) *Var {
+    return gvar.New(i, safe...)
+}
+
 // 阻塞等待HTTPServer执行完成(同一进程多HTTPServer情况下)
 func Wait() {
     ghttp.Wait()
diff --git a/g/net/ghttp/ghttp_request.go b/g/net/ghttp/ghttp_request.go
index 220fc0e64..23c86f53e 100644
--- a/g/net/ghttp/ghttp_request.go
+++ b/g/net/ghttp/ghttp_request.go
@@ -15,6 +15,7 @@ import (
     "gitee.com/johng/gf/g/os/gtime"
     "github.com/fatih/structs"
     "strings"
+    "gitee.com/johng/gf/g/container/gvar"
 )
 
 // 请求对象
@@ -79,6 +80,10 @@ func (r *Request) Get(key string, def ... string) string {
     return r.GetRequestString(key, def...)
 }
 
+func (r *Request) GetVar(key string, def ... interface{}) *gvar.Var {
+    return r.GetRequestVar(key, def...)
+}
+
 // 获取原始请求输入字符串，注意：只能获取一次，读完就没了
 func (r *Request) GetRaw() []byte {
     result, _ := ioutil.ReadAll(r.Body)
diff --git a/g/net/ghttp/ghttp_request_request.go b/g/net/ghttp/ghttp_request_request.go
index 35c53d856..a601b9afc 100644
--- a/g/net/ghttp/ghttp_request_request.go
+++ b/g/net/ghttp/ghttp_request_request.go
@@ -8,6 +8,7 @@ package ghttp
 
 import (
     "gitee.com/johng/gf/g/util/gconv"
+    "gitee.com/johng/gf/g/container/gvar"
 )
 
 // 获得router、post或者get提交的参数，如果有同名参数，那么按照router->get->post优先级进行覆盖
@@ -25,6 +26,17 @@ func (r *Request) GetRequest(key string, def ... []string) []string {
     return v
 }
 
+func (r *Request) GetRequestVar(key string, def ... interface{}) *gvar.Var {
+    value := r.GetRequest(key)
+    if value != nil {
+        return gvar.New(value)
+    }
+    if len(def) > 0 {
+        return gvar.New(def[0])
+    }
+    return nil
+}
+
 func (r *Request) GetRequestString(key string, def ... string) string {
     value := r.GetRequest(key)
     if value != nil && value[0] != "" {
diff --git a/g/util/gconv/gconv_struct.go b/g/util/gconv/gconv_struct.go
index 245ab9f52..b59177cfd 100644
--- a/g/util/gconv/gconv_struct.go
+++ b/g/util/gconv/gconv_struct.go
@@ -122,13 +122,15 @@ func getTagMapOfStruct(objPointer interface{}) map[string]string {
 // 将参数值绑定到对象指定名称的属性上
 func bindVarToStruct(elem reflect.Value, name string, value interface{}) error {
     structFieldValue := elem.FieldByName(name)
-    // 键名与对象属性匹配检测
+    // 键名与对象属性匹配检测，map中如果有struct不存在的属性，那么不做处理，直接return
     if !structFieldValue.IsValid() {
-        return errors.New(fmt.Sprintf(`invalid struct attribute of name "%s"`, name))
+        //return errors.New(fmt.Sprintf(`invalid struct attribute of name "%s"`, name))
+        return nil
     }
     // CanSet的属性必须为公开属性(首字母大写)
     if !structFieldValue.CanSet() {
-        return errors.New(fmt.Sprintf(`struct attribute of name "%s" cannot be set`, name))
+        //return errors.New(fmt.Sprintf(`struct attribute of name "%s" cannot be set`, name))
+        return nil
     }
     // 必须将value转换为struct属性的数据类型，这里必须用到gconv包
     defer func() {
@@ -146,11 +148,13 @@ func bindVarToStructByIndex(elem reflect.Value, index int, value interface{}) er
     structFieldValue := elem.FieldByIndex([]int{index})
     // 键名与对象属性匹配检测
     if !structFieldValue.IsValid() {
-        return errors.New(fmt.Sprintf("invalid struct attribute at index %d", index))
+        //return errors.New(fmt.Sprintf("invalid struct attribute at index %d", index))
+        return nil
     }
     // CanSet的属性必须为公开属性(首字母大写)
     if !structFieldValue.CanSet() {
-        return errors.New(fmt.Sprintf("struct attribute cannot be set at index %d", index))
+        //return errors.New(fmt.Sprintf("struct attribute cannot be set at index %d", index))
+        return nil
     }
     // 必须将value转换为struct属性的数据类型，这里必须用到gconv包
     defer func() {
diff --git a/geg/database/orm/mysql/gdb_value.go b/geg/database/orm/mysql/gdb_value.go
new file mode 100644
index 000000000..d533806ec
--- /dev/null
+++ b/geg/database/orm/mysql/gdb_value.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+    "gitee.com/johng/gf/g/database/gdb"
+    "fmt"
+)
+
+func main() {
+    gdb.AddDefaultConfigNode(gdb.ConfigNode {
+        Host    : "127.0.0.1",
+        Port    : "3306",
+        User    : "root",
+        Pass    : "123456",
+        Name    : "test",
+        Type    : "mysql",
+        Role    : "master",
+        Charset : "utf8",
+    })
+    db, err := gdb.New()
+    if err != nil {
+        panic(err)
+    }
+    // 开启调试模式，以便于记录所有执行的SQL
+    db.SetDebug(true)
+
+    r, _ := db.Table("user").Where("uid=?", 1).One()
+    if r != nil {
+        fmt.Println(r["uid"].Int())
+        fmt.Println(r["name"].String())
+    }
+}
\ No newline at end of file
diff --git a/geg/other/test.go b/geg/other/test.go
index 62b8975be..7b8d1d9b6 100644
--- a/geg/other/test.go
+++ b/geg/other/test.go
@@ -1,8 +1,8 @@
 package main
 
 import (
+    "gitee.com/johng/gf/g"
     "fmt"
-    "reflect"
 )
 
 type S struct {
@@ -10,12 +10,7 @@ type S struct {
 }
 
 func main() {
-    s := S{}
-    fmt.Println(reflect.ValueOf(s).Kind())
-    fmt.Println(reflect.ValueOf(&s).Elem().Kind())
-
-    v := reflect.ValueOf(s).Interface()
-    fmt.Println(reflect.ValueOf(v).Kind())
-    fmt.Println(reflect.ValueOf(&v).Elem().Type().PkgPath())
+    v := g.NewVar(nil)
+    fmt.Println(v.Val())
 }