first commit

assets/seripts/libs/Utils.ts

@@ -0,0 +1,34 @@
+import { sys } from "cc";
+
+export default class Utils {
+  /**
+   *
+   * @param {缓存key} key
+   * @param {需要存储的缓存值} value
+   * @param {过期时间} expire
+   */
+  static setCache(key: string, value: any, expire: number = 0): void {
+    let obj = {
+      data: value, //存储的数据
+      time: Date.now() / 1000, //记录存储的时间戳
+      expire: expire, //记录过期时间，单位秒
+    };
+    sys.localStorage.setItem(key, JSON.stringify(obj));
+  }
+  /**
+   *
+   * @param {缓存key} key
+   */
+  static getCache(key: string): any {
+    let val: any = sys.localStorage.getItem(key);
+    if (!val) {
+      return null;
+    }
+    val = JSON.parse(val);
+    if (val.expire && Date.now() / 1000 - val.time > val.expire) {
+      sys.localStorage.removeItem(key);
+      return null;
+    }
+    return val.data;
+  }
+}