feat: sync system code

Signed-off-by: MiaoWoo <admin@yumc.pw>

src/system/dapp.ts

@@ -9,7 +9,7 @@
 */
 
 "use strict";
-class DApp {
+export default class DApp {
     constructor() {
     }
     Name() {
@@ -69,19 +69,5 @@ declare global {
         }
     }
 }
-
-// function ReqDir(Path) {
-//     if (fs.existsSync(Path)) {
-//         var arr = fs.readdirSync(Path);
-//         for (var i = 0; i < arr.length; i++) {
-//             var name = arr[i];
-//             global.ToLog("Reg: " + name);
-//             var name2 = Path + "/" + arr[i];
-//             require(name2);
-//         }
-//     }
-// };
 global.DApps = {};
 global.DAppByType = {};
-
-export default DApp;