diff --git a/package.json b/package.json
index 3311b0c..9bcb8e9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@bd/core",
-  "version": "1.5.13",
+  "version": "1.5.14",
   "type": "module",
   "description": "百搭UI组件库的核心",
   "main": "dist/index.js",
diff --git a/src/constants.js b/src/constants.js
index 116ac58..78e6d21 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -39,18 +39,11 @@ export const WC_PART = Symbol('wc_path')
 export const NO_CHANGE = Symbol('wc-noChange')
 export const NOTHING = Symbol('wc-nothing')
 export const __finalized__ = Symbol('finalized')
-export const __render__ = Symbol('render')
-export const __init__ = Symbol('init')
 export const __props__ = Symbol('props')
 export const __changed_props__ = Symbol('changed_props')
 export const __mounted__ = Symbol('mounted')
-export const __feedback__ = Symbol('feedback')
 export const __pending__ = Symbol('pending')
-export const __prop2attr__ = Symbol('prop2attr')
-export const __attr2prop__ = Symbol('attr2prop')
-export const __clear_update__ = Symbol('clearupdate')
 export const __children__ = Symbol('children')
-export const __updated__ = Symbol('updated')
 
 export const RESET_CSS_STYLE = `* {box-sizing: border-box;margin: 0;padding: 0;}::before,::after {box-sizing: border-box;}`
 
diff --git a/src/index.js b/src/index.js
index eb3ed7d..f977940 100644
--- a/src/index.js
+++ b/src/index.js
@@ -8,18 +8,11 @@ import {
   parsePropsDeclaration,
   boolMap,
   __finalized__,
-  __render__,
-  __init__,
   __props__,
   __changed_props__,
   __mounted__,
-  __feedback__,
   __pending__,
-  __prop2attr__,
-  __attr2prop__,
-  __clear_update__,
-  __children__,
-  __updated__
+  __children__
 } from './constants.js'
 import { css, adoptStyles } from './css.js'
 import { render, html, svg } from './html.js'
@@ -114,7 +107,7 @@ export class Component extends HTMLElement {
     this.created()
   }
 
-  [__init__]() {
+  #init() {
     // 这里重新赋值一次, 用于清除掉因为 observer 修正产生的变化
     this[__changed_props__] = new Map()
     // 初始化 props
@@ -125,7 +118,7 @@ export class Component extends HTMLElement {
     // 若无定义props时, 手动执行一次渲染
     if (this[__pending__] === false) {
       this[__pending__] = true
-      nextTick(_ => this[__updated__]())
+      nextTick(_ => this.#confirmUpdate())
     }
   }
 
@@ -134,7 +127,7 @@ export class Component extends HTMLElement {
   }
 
   connectedCallback() {
-    this[__init__]()
+    this.#init()
     adoptStyles(this.root, this.constructor.styles)
 
     this[__children__]?.setConnected(true)
@@ -149,7 +142,7 @@ export class Component extends HTMLElement {
     if (old === val) {
       return
     }
-    this[__attr2prop__](name, val, old)
+    this.#attr2prop(name, val, old)
   }
 
   /**
@@ -158,7 +151,7 @@ export class Component extends HTMLElement {
    * @param name<String>
    * @param value<String|Boolean|Number>
    */
-  [__prop2attr__](name, value) {
+  #prop2attr(name, value) {
     let options = this.#getPropOptions(name)
 
     if (options.attribute === false) {
@@ -191,7 +184,7 @@ export class Component extends HTMLElement {
    * @param name<String>
    * @param value<String|Boolean|Number>
    */
-  [__attr2prop__](name, value, old) {
+  #attr2prop(name, value, old) {
     let _name = boolMap[name],
       options
     if (_name) {
@@ -206,27 +199,25 @@ export class Component extends HTMLElement {
   $requestUpdate(name, oldValue) {
     if (name !== void 0) {
       this[__changed_props__].set(name, this[name])
-      this[__prop2attr__](name, this[name])
+      this.#prop2attr(name, this[name])
     }
 
     if (this[__pending__] === false) {
       this[__pending__] = true
-      nextTick(_ => this[__updated__]())
+      nextTick(_ => this.#confirmUpdate())
     }
   }
 
   // 确认更新到视图
-  [__updated__]() {
-    if (this[__pending__]) {
-      let props = this[__changed_props__]
-      this[__render__]()
-      this[__feedback__](props)
-      this[__clear_update__]()
-    }
+  #confirmUpdate() {
+    let props = this[__changed_props__]
+    this.#render()
+    this.#feedback(props)
+    this.#clearUpdate()
   }
 
   // 更新回调反馈
-  [__feedback__](props) {
+  #feedback(props) {
     // 初始化时不触发updated回调
     if (this[__mounted__] === false) {
       this[__mounted__] = true
@@ -236,13 +227,13 @@ export class Component extends HTMLElement {
     }
   }
 
-  [__clear_update__]() {
+  #clearUpdate() {
     this[__changed_props__] = new Map()
     this[__pending__] = false
   }
 
   // 渲染视图
-  [__render__]() {
+  #render() {
     let ast = this.render()
 
     this[__children__] = render(ast, this.root, {