优化StorageManager存储的key值中唯一编号字符记录在前，便于数据多时阅读数据；无唯一编号key去掉间隔符

assets/core/common/storage/StorageManager.ts

@@ -6,7 +6,7 @@ import { EncryptUtil } from "../../utils/EncryptUtil";
 export class StorageManager {
     private _key: string | null = null;
     private _iv: string | null = null;
-    private _id: string = "";
+    private _id: string = null!;
 
     /**
      * 初始化密钥
@@ -35,7 +35,7 @@ export class StorageManager {
      * @returns 
      */
     set(key: string, value: any) {
-        var keywords = `${key}_${this._id}`;
+        var keywords = this.getKey(key);
 
         if (null == key) {
             console.error("存储的key不能为空");
@@ -84,7 +84,7 @@ export class StorageManager {
             return null!;
         }
 
-        key = `${key}_${this._id}`;
+        key = this.getKey(key);
 
         if (!PREVIEW) {
             key = EncryptUtil.md5(key);
@@ -145,4 +145,11 @@ export class StorageManager {
     clear() {
         sys.localStorage.clear();
     }
+
+    private getKey(key: string): string {
+        if (this._id == null || this._id == "") {
+            return key;
+        }
+        return `${this._id}_${key}`;
+    }
 }