diff --git a/samples/helloworld.ks b/samples/helloworld.ks
index a70b51f..cc16d38 100644
--- a/samples/helloworld.ks
+++ b/samples/helloworld.ks
@@ -1,4 +1,5 @@
 
 mod D:\code\rs\key-native\target\debug\key_native.dll> m
 
-let a = m-.test();
+let a = m-:Okk::new(555);
+log(a)
diff --git a/src/native.rs b/src/native.rs
index 364cf95..353743d 100644
--- a/src/native.rs
+++ b/src/native.rs
@@ -5,50 +5,59 @@ use crate::{
 };
 
 pub type NativeFn = fn(Vec<Litr>)-> Litr;
-pub type Getter = fn(get:&[u8]);
-pub type Setter = fn(set:&[u8], to:Litr);
-pub type IndexGetter = fn(get:usize)-> Litr;
-pub type IndexSetter = fn(set:usize, to:Litr)-> Litr;
 pub type NativeMethod = fn(kself:&mut Litr, Vec<Litr>)-> Litr;
+pub type Getter = fn(get:Interned)-> Litr;
+pub type Setter = fn(set:Interned, to:Litr);
+pub type IndexGetter = fn(get:usize)-> Litr;
+pub type IndexSetter = fn(set:usize, to:Litr);
 
 #[derive(Debug, Clone)]
 pub struct NativeMod {
   pub name: Interned,
   pub funcs: Vec<(Interned, NativeFn)>,
-  pub classes: Vec<NativeClassDef>
+  pub classes: Vec<*const NativeClassDef>
 }
 
+#[repr(C)]
 #[derive(Debug, Clone)]
 pub struct NativeClassDef {
   pub name: Interned,
-  pub getters: Vec<(Interned, Getter)>,
-  pub setters: Vec<(Interned, Setter)>,
-  pub igetters: Vec<(Interned, IndexGetter)>,
-  pub isetters: Vec<(Interned, IndexSetter)>,
+  pub getter: Getter,
+  pub setter: Setter,
+  pub igetter: IndexGetter,
+  pub isetter: IndexSetter,
   pub statics: Vec<(Interned, NativeFn)>,
   pub methods: Vec<(Interned, NativeMethod)>
 }
 
-pub struct NativeApis<'a> {
-  export_fn: &'a mut dyn FnMut(&'a [u8], NativeFn),
-  export_cls: &'a mut dyn FnMut(NativeClassDef),
+/// 传进main里的东西，作为与原生的接口
+#[repr(C)]
+struct NativeInterface {
+  intern: fn(&[u8])-> Interned,
+  err: fn(&str)->!,
+  funcs: *mut Vec<(Interned, NativeFn)>,
+  classes: *mut Vec<*const NativeClassDef>
 }
 
-#[repr(transparent)]
+/// 原生类型实例
+#[derive(Debug, Clone)]
+#[repr(C)]
 pub struct NativeInstance {
-  pub p: usize
+  pub cls: *mut NativeClassDef,
+  pub v: [usize;2],
 }
 
 pub fn parse(name:Interned,path:&[u8])-> Result<NativeMod, String> {
   let lib = Clib::load(path)?;
   let mut funcs = Vec::new();
-  let export_fn = &mut |name, f|funcs.push((intern(name), f));
   let mut classes = Vec::new();
-  let export_cls = &mut |c|classes.push(c);
+  fn err(s:&str)->! {
+    panic!("{} \n  运行时({})", s, unsafe{crate::runtime::LINE})
+  }
   unsafe {
-    let keymain:extern fn(&mut NativeApis) = std::mem::transmute(lib.get(b"keymain").ok_or("模块需要'KeyMain'作为主运行函数")?);
-    keymain(&mut NativeApis {
-      export_fn, export_cls
+    let keymain:extern fn(&mut NativeInterface) = std::mem::transmute(lib.get(b"keymain").ok_or("模块需要'KeyMain'作为主运行函数")?);
+    keymain(&mut NativeInterface {
+      intern, err, funcs: &mut funcs, classes: &mut classes
     });
   }
   Ok(NativeMod{
diff --git a/src/runtime/externer.rs b/src/runtime/externer.rs
index f270862..a85bdd5 100644
--- a/src/runtime/externer.rs
+++ b/src/runtime/externer.rs
@@ -77,6 +77,7 @@ pub fn translate(arg:Litr)-> Result<usize,String> {
     List(_)=> Err("列表类型不可作为C指针传递".to_string()),
     Obj=> Err("Ks对象不可作为C指针传递".to_string()),
     Inst(_)=> Err("Ks实例不可作为C指针传递".to_string()),
+    Ninst(_)=> Err("Ks原生实例不可作为C指针传递".to_string())
   }
 }
 
diff --git a/src/runtime/mod.rs b/src/runtime/mod.rs
index c273dd0..8296179 100644
--- a/src/runtime/mod.rs
+++ b/src/runtime/mod.rs
@@ -27,7 +27,7 @@ mod externer;
 /// 运行期追踪行号
 /// 
 /// 只有主线程会访问，不存在多线程同步问题
-static mut LINE:usize = 0;
+pub static mut LINE:usize = 0;
 #[macro_use] macro_rules! err {($($a:expr$(,)?)*) => {
   panic!("{} 运行时({})", format_args!($($a,)*), unsafe{LINE})
 }}
@@ -226,11 +226,12 @@ impl Scope {
       Module::Native(p)=> {
         let m = unsafe {&*p};
         for cls in m.classes.iter() {
-          if cls.name == s {
-            return Class::Native(cls);
+          let name = unsafe {&**cls}.name;
+          if name == s {
+            return Class::Native(*cls);
           }
         }
-        err!("模块'{}'中没有'{}'类型",modname.str(), s.str())
+        err!("原生模块'{}'中没有'{}'类型",modname.str(), s.str())
       }
     }
   }
diff --git a/src/scan/literal.rs b/src/scan/literal.rs
index 6ead9d0..41e0c09 100644
--- a/src/scan/literal.rs
+++ b/src/scan/literal.rs
@@ -4,13 +4,13 @@ use super::{
   expr::*
 };
 
-use crate::runtime::{Module, Scope};
+use crate::{native::NativeInstance, runtime::{Module, Scope}};
 use crate::intern::Interned;
 
 use std::collections::HashMap;
 
 
-/// 变量或字面量
+#[repr(C)]
 #[derive(Debug, Clone)]
 pub enum Litr {
   Uninit,
@@ -25,7 +25,8 @@ pub enum Litr {
   Buffer (Box<Vec<u8>>),
   List   (Box<Vec<Litr>>),
   Obj,
-  Inst   (Box<Instance>)
+  Inst   (Box<Instance>),
+  Ninst  (Box<NativeInstance>)
 }
 impl Litr {
   /// 由Key编译器提供的转字符
@@ -87,6 +88,12 @@ impl Litr {
         str.push_str(" }");
         str
       }
+      Ninst(inst)=> {
+        let mut s = String::new();
+        s.push_str(&unsafe{&*inst.cls}.name.str());
+        s.push_str(" { Native }");
+        s
+      }
     }
   }
 }