添加持久化逻辑

src/constants/config.ts

@@ -1,9 +1,18 @@
 
 
 export const config = {
-  debug: false,
-  openGuide: true,
-  breakpoint: 1, // 竖版和横版的分界宽度
+  DEBUG: false,
+  OPEN_GUIDE: true,
+  BREAK_POINT: 1, // 竖版和横版的分界宽度
+
+  DIFFICULTY_TYPE: {//难度
+    Easy: 1,
+    Medium: 2,
+    Hard: 3,
+    Expert: 4,
+    Extreme: 5,
+  },
+
 
 }