feat: match info

opt dateformat

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/utils/app_sign.dart

@@ -0,0 +1,19 @@
+import 'dart:convert';
+
+import 'package:PiliPlus/common/constants.dart';
+import 'package:crypto/crypto.dart';
+
+class AppSign {
+  static void appSign(Map<String, dynamic> params,
+      [String appkey = Constants.appKey, String appsec = Constants.appSec]) {
+    params['appkey'] = appkey;
+    var searchParams = Uri(
+        queryParameters:
+            params.map((key, value) => MapEntry(key, value.toString()))).query;
+    var sortedQueryString = (searchParams.split('&')..sort()).join('&');
+
+    params['sign'] = md5
+        .convert(utf8.encode(sortedQueryString + appsec))
+        .toString(); // 获取MD5哈希值
+  }
+}