diff --git a/examples/core-demos/src/demos/IncrementalSerializationDemo.ts b/examples/core-demos/src/demos/IncrementalSerializationDemo.ts
index 0b3c3331..2ea605e5 100644
--- a/examples/core-demos/src/demos/IncrementalSerializationDemo.ts
+++ b/examples/core-demos/src/demos/IncrementalSerializationDemo.ts
@@ -2,7 +2,9 @@ import { DemoBase, DemoInfo } from './DemoBase';
 import {
     Component,
     ECSComponent,
+    Entity,
     EntitySystem,
+    Matcher,
     Serializable,
     Serialize,
     IncrementalSerializer
@@ -47,19 +49,19 @@ class RenderableComponent extends Component {
 
 // ===== 系统定义 =====
 class MovementSystem extends EntitySystem {
-    update() {
-        if (!this.scene) return;
-        const entities = this.scene.entities.buffer;
-        for (const entity of entities) {
-            const pos = entity.getComponent(PositionComponent);
-            const vel = entity.getComponent(VelocityComponent);
-            if (pos && vel) {
-                pos.x += vel.vx;
-                pos.y += vel.vy;
+    constructor() {
+        super(Matcher.all(PositionComponent, VelocityComponent));
+    }
 
-                if (pos.x < 0 || pos.x > 1200) vel.vx *= -1;
-                if (pos.y < 0 || pos.y > 600) vel.vy *= -1;
-            }
+    protected override process(entities: readonly Entity[]): void {
+        for (const entity of entities) {
+            const [pos, vel] = this.getComponents(entity, PositionComponent, VelocityComponent);
+
+            pos.x += vel.vx;
+            pos.y += vel.vy;
+
+            if (pos.x < 0 || pos.x > 1200) vel.vx *= -1;
+            if (pos.y < 0 || pos.y > 600) vel.vy *= -1;
         }
     }
 }
@@ -69,34 +71,29 @@ class RenderSystem extends EntitySystem {
     private ctx: CanvasRenderingContext2D;
 
     constructor(canvas: HTMLCanvasElement) {
-        super();
+        super(Matcher.all(PositionComponent, RenderableComponent));
         this.canvas = canvas;
         const ctx = canvas.getContext('2d');
         if (!ctx) throw new Error('Failed to get canvas context');
         this.ctx = ctx;
     }
 
-    update() {
-        if (!this.scene) return;
-
+    protected override process(entities: readonly Entity[]): void {
         this.ctx.fillStyle = '#0a0a15';
         this.ctx.fillRect(0, 0, this.canvas.width, this.canvas.height);
 
-        const entities = this.scene.entities.buffer;
         for (const entity of entities) {
-            const pos = entity.getComponent(PositionComponent);
-            const render = entity.getComponent(RenderableComponent);
-            if (pos && render) {
-                this.ctx.fillStyle = render.color;
-                this.ctx.beginPath();
-                this.ctx.arc(pos.x, pos.y, render.radius, 0, Math.PI * 2);
-                this.ctx.fill();
+            const [pos, render] = this.getComponents(entity, PositionComponent, RenderableComponent);
 
-                this.ctx.fillStyle = 'white';
-                this.ctx.font = '10px Arial';
-                this.ctx.textAlign = 'center';
-                this.ctx.fillText(entity.name, pos.x, pos.y - render.radius - 5);
-            }
+            this.ctx.fillStyle = render.color;
+            this.ctx.beginPath();
+            this.ctx.arc(pos.x, pos.y, render.radius, 0, Math.PI * 2);
+            this.ctx.fill();
+
+            this.ctx.fillStyle = 'white';
+            this.ctx.font = '10px Arial';
+            this.ctx.textAlign = 'center';
+            this.ctx.fillText(entity.name, pos.x, pos.y - render.radius - 5);
         }
     }
 }
diff --git a/examples/core-demos/src/demos/SerializationDemo.ts b/examples/core-demos/src/demos/SerializationDemo.ts
index d5ff884e..e6afa6a1 100644
--- a/examples/core-demos/src/demos/SerializationDemo.ts
+++ b/examples/core-demos/src/demos/SerializationDemo.ts
@@ -4,6 +4,7 @@ import {
     ECSComponent,
     Entity,
     EntitySystem,
+    Matcher,
     Serializable,
     Serialize,
     SerializeAsMap
@@ -61,19 +62,20 @@ class PlayerComponent extends Component {
 
 // ===== 系统定义 =====
 class MovementSystem extends EntitySystem {
-    update() {
-        const entities = this.scene.entities.buffer;
-        for (const entity of entities) {
-            const pos = entity.getComponent(PositionComponent);
-            const vel = entity.getComponent(VelocityComponent);
-            if (pos && vel) {
-                pos.x += vel.vx;
-                pos.y += vel.vy;
+    constructor() {
+        super(Matcher.all(PositionComponent, VelocityComponent));
+    }
 
-                // 边界反弹
-                if (pos.x < 0 || pos.x > 1200) vel.vx *= -1;
-                if (pos.y < 0 || pos.y > 600) vel.vy *= -1;
-            }
+    protected override process(entities: readonly Entity[]): void {
+        for (const entity of entities) {
+            const [pos, vel] = this.getComponents(entity, PositionComponent, VelocityComponent);
+
+            pos.x += vel.vx;
+            pos.y += vel.vy;
+
+            // 边界反弹
+            if (pos.x < 0 || pos.x > 1200) vel.vx *= -1;
+            if (pos.y < 0 || pos.y > 600) vel.vy *= -1;
         }
     }
 }
@@ -83,35 +85,32 @@ class RenderSystem extends EntitySystem {
     private ctx: CanvasRenderingContext2D;
 
     constructor(canvas: HTMLCanvasElement) {
-        super();
+        super(Matcher.all(PositionComponent, RenderableComponent));
         this.canvas = canvas;
         this.ctx = canvas.getContext('2d')!;
     }
 
-    update() {
+    protected override process(entities: readonly Entity[]): void {
         // 清空画布
         this.ctx.fillStyle = '#0a0a15';
         this.ctx.fillRect(0, 0, this.canvas.width, this.canvas.height);
 
         // 渲染所有实体
-        const entities = this.scene.entities.buffer;
         for (const entity of entities) {
-            const pos = entity.getComponent(PositionComponent);
-            const render = entity.getComponent(RenderableComponent);
-            if (pos && render) {
-                this.ctx.fillStyle = render.color;
-                this.ctx.beginPath();
-                this.ctx.arc(pos.x, pos.y, render.radius, 0, Math.PI * 2);
-                this.ctx.fill();
+            const [pos, render] = this.getComponents(entity, PositionComponent, RenderableComponent);
 
-                // 如果是玩家，显示名字
-                const player = entity.getComponent(PlayerComponent);
-                if (player) {
-                    this.ctx.fillStyle = 'white';
-                    this.ctx.font = '12px Arial';
-                    this.ctx.textAlign = 'center';
-                    this.ctx.fillText(player.name, pos.x, pos.y - render.radius - 5);
-                }
+            this.ctx.fillStyle = render.color;
+            this.ctx.beginPath();
+            this.ctx.arc(pos.x, pos.y, render.radius, 0, Math.PI * 2);
+            this.ctx.fill();
+
+            // 如果是玩家，显示名字
+            const player = entity.getComponent(PlayerComponent);
+            if (player) {
+                this.ctx.fillStyle = 'white';
+                this.ctx.font = '12px Arial';
+                this.ctx.textAlign = 'center';
+                this.ctx.fillText(player.name, pos.x, pos.y - render.radius - 5);
             }
         }
     }
diff --git a/examples/core-demos/src/demos/WorkerSystemDemo.ts b/examples/core-demos/src/demos/WorkerSystemDemo.ts
index 8d3349ab..96cf832b 100644
--- a/examples/core-demos/src/demos/WorkerSystemDemo.ts
+++ b/examples/core-demos/src/demos/WorkerSystemDemo.ts
@@ -447,20 +447,18 @@ class RenderSystem extends EntitySystem {
     private ctx: CanvasRenderingContext2D;
 
     constructor(canvas: HTMLCanvasElement) {
-        super(Matcher.empty().all(Position, Renderable));
+        super(Matcher.all(Position, Renderable));
         this.canvas = canvas;
         this.ctx = canvas.getContext('2d')!;
     }
 
-    protected override process(entities: Entity[]): void {
+    protected override process(entities: readonly Entity[]): void {
         this.ctx.fillStyle = '#000';
         this.ctx.fillRect(0, 0, this.canvas.width, this.canvas.height);
 
         for (const entity of entities) {
-            const position = entity.getComponent(Position);
-            const renderable = entity.getComponent(Renderable);
-
-            if (!position || !renderable) continue;
+            const position = this.requireComponent(entity, Position);
+            const renderable = this.requireComponent(entity, Renderable);
 
             this.ctx.fillStyle = renderable.color;
             this.ctx.beginPath();
@@ -473,15 +471,14 @@ class RenderSystem extends EntitySystem {
 @ECSSystem('LifetimeSystem')
 class LifetimeSystem extends EntitySystem {
     constructor() {
-        super(Matcher.empty().all(Lifetime));
+        super(Matcher.all(Lifetime));
     }
 
-    protected override process(entities: Entity[]): void {
+    protected override process(entities: readonly Entity[]): void {
         const deltaTime = Time.deltaTime;
 
         for (const entity of entities) {
-            const lifetime = entity.getComponent(Lifetime);
-            if (!lifetime) continue;
+            const lifetime = this.requireComponent(entity, Lifetime);
 
             lifetime.currentAge += deltaTime;
             if (lifetime.isDead()) {