diff --git a/src/html.js b/src/html.js
index 1842aa3..456e557 100644
--- a/src/html.js
+++ b/src/html.js
@@ -248,7 +248,6 @@ class Template {
 class TemplateInstance {
   constructor(template, parent) {
     this._parts = []
-    this._$disconnectableChildren = void 0
     this._$template = template
     this._$parent = parent
   }
@@ -349,15 +348,14 @@ class ChildPart {
   constructor(startNode, endNode, parent, options) {
     this.type = CHILD_PART
     this._$committedValue = NOTHING
-    this._$disconnectableChildren = void 0
     this._$startNode = startNode
     this._$endNode = endNode
     this._$parent = parent
     this.options = options
-    this.__isConnected = options.isConnected || true
+    this.__isConnected = options.isConnected ?? true
   }
   get _$isConnected() {
-    return this._$parent?._$isConnected || this.__isConnected
+    return this._$parent?._$isConnected ?? this.__isConnected
   }
   get parentNode() {
     let parentNode = this._$startNode.parentNode
@@ -475,8 +473,6 @@ class ChildPart {
   }
 
   #clear(start = this._$startNode.nextSibling, from) {
-    this._$notifyConnectionChanged?.call(this, false, true, from)
-
     while (start && start !== this._$endNode) {
       let node = start.nextSibling
       start.remove()
@@ -486,7 +482,6 @@ class ChildPart {
   setConnected(isConnected) {
     if (this._$parent === void 0) {
       this.__isConnected = isConnected
-      this._$notifyConnectionChanged?.call(this, isConnected)
     }
   }
 }
@@ -495,7 +490,6 @@ class AttributePart {
   constructor(element, name, strings, decorates, parent, options = {}) {
     this.type = ATTRIBUTE_PART
     this._$committedValue = NOTHING
-    this._$disconnectableChildren = void 0
     this.element = element
     this.name = name
     this.decorates = decorates
@@ -688,7 +682,6 @@ class ElementPart {
   constructor(element, parent, options) {
     this.element = element
     this.type = ELEMENT_PART
-    this._$disconnectableChildren = void 0
     this._$parent = parent
     this.options = options
   }
diff --git a/src/index.js b/src/index.js
index 895dbe3..84b28a1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -253,8 +253,6 @@ export class Component extends HTMLElement {
     }
     this.#init()
     adoptStyles(this.root, this.constructor.styles)
-
-    this[__children__]?.setConnected(true)
   }
 
   disconnectedCallback() {
@@ -382,6 +380,7 @@ export class Component extends HTMLElement {
     // 初始化时不触发updated回调
     if (this[__mounted__] === false) {
       this[__mounted__] = true
+      this[__children__].setConnected(true)
       if (this.$animate?.immediate) {
         this.$animate()
       }