diff --git a/src/stores/useSchemeStore.ts b/src/stores/useSchemeStore.ts
index 5d00dc3..83be30e 100644
--- a/src/stores/useSchemeStore.ts
+++ b/src/stores/useSchemeStore.ts
@@ -1,30 +1,17 @@
-import {defineStore} from 'pinia';
-import {IPageComponent} from '@/type/IPageComponent';
-import {sha256} from 'js-sha256';
+import { defineStore } from 'pinia';
+import { IPageComponent } from '@/type/IPageComponent';
+import { sha256 } from 'js-sha256';
+import { popFromStack, pushToStack, topFromStack } from '@/utils/LRU.ts';
 
 // 缓存对象
 const idToObjectCache = new Map<string, IPageComponent>();
 
-// 栈维护函数
-function pushToStack(stack: string[], id: string): void {
-    if (!stack.includes(id)) {
-        stack.push(id);
-    }
-}
-
-function popFromStack(stack: string[]): string | undefined {
-    return stack.pop();
-}
-function topFromStack(stack: string[]): string | undefined {
-    return stack.at(-1); // 使用 .at() 方法访问最后一个元素
-}
-
 function findObjectById(obj: any, targetId: string) {
     if (Array.isArray(obj)) {
         for (let i = 0; i < obj.length; i++) {
             const item = obj[i];
             if (item.id === targetId) {
-                return {item, index: i, parent: obj};
+                return { item, index: i, parent: obj };
             }
             const found = findObjectById(item, targetId);
             if (found) return found;
@@ -93,38 +80,33 @@ export const useSchemeStore = defineStore('scheme', {
         },
 
         updateNowScheme(updates: Partial<IPageComponent>) {
+            debugger;
             this.nowComponentsData = updates;
             pushToStack(this.selectedComponentStack, this.nowComponentsData.id);
 
-            console.log("更新nowComponentsData",this.nowComponentsData);
-
-            console.log("更新selectedComponentStack",this.selectedComponentStack);
+            console.log("更新nowComponentsData", this.nowComponentsData);
 
             return this.nowComponentsData;
         },
         deleteScheme(id: string) {
-            console.log("删除前,组件id",id)
-            console.log("删除前,栈",this.selectedComponentStack)
+            debugger;
+            console.log("删除前,组件id", id);
             const currentStateHash = this.currentHash;
             const objToDelete = findObjectById(this.previewScheme, id);
             if (objToDelete) {
-                const {item, index, parent} = objToDelete;
+                const { item, index, parent } = objToDelete;
                 parent.splice(index, 1);
                 idToObjectCache.delete(id); // 从缓存中删除
                 // 清理 history 中的引用
                 this.cleanupReferences(id);
-
             }
             this.saveNewState(currentStateHash);
             popFromStack(this.selectedComponentStack);
-            console.log("scheme",this.previewScheme);
-            const preComponentId=topFromStack(this.selectedComponentStack)
-            console.log("删除后,栈",this.selectedComponentStack)
-            console.log("删除后,前一个组件id",preComponentId)
-            const preObj=this.getSchemeObj(preComponentId)
-            console.log("删除后,前一个组件",preObj)
-
-            this.nowComponentsData = preObj;
+            const preComponentId = topFromStack(this.selectedComponentStack);
+            this.nowComponentsData = this.getSchemeObj(preComponentId || '');
+            console.log("删除后,栈", this.selectedComponentStack);
+            console.log("删除后,前一个组件id", preComponentId);
+            console.log("删除后,前一个组件", this.nowComponentsData);
         },
         cleanupReferences(id: string) {
             // 清理 nowComponentsData
@@ -138,7 +120,7 @@ export const useSchemeStore = defineStore('scheme', {
                 if (historyState) {
                     const obj = findObjectById(historyState, id);
                     if (obj) {
-                        const {parent, index} = obj;
+                        const { parent, index } = obj;
                         parent.splice(index, 1);
                     }
                 }
@@ -150,7 +132,7 @@ export const useSchemeStore = defineStore('scheme', {
                 const prevState = this.history[this.currentIndex % HISTORY_LENGTH];
                 if (prevState) {
                     this.previewScheme = prevState;
-                    this.nowComponentsData = this.previewScheme[0] || {} as IPageComponent;
+                    this.nowComponentsData = this.getSchemeObj(topFromStack(this.selectedComponentStack) || '');
                     this.currentHash = sha256(JSON.stringify(this.previewScheme));
                 }
             }
@@ -161,7 +143,7 @@ export const useSchemeStore = defineStore('scheme', {
                 const nextState = this.history[this.currentIndex % HISTORY_LENGTH];
                 if (nextState) {
                     this.previewScheme = nextState;
-                    this.nowComponentsData = this.previewScheme[0] || {} as IPageComponent;
+                    this.nowComponentsData = this.getSchemeObj(topFromStack(this.selectedComponentStack) || '');
                     this.currentHash = sha256(JSON.stringify(this.previewScheme));
                 }
             }