优化代码

library/think/Route.php

@@ -355,6 +355,7 @@ class Route
                     self::$rules['*'][$name]['pattern'] = $pattern;
                 }
             } else {
+                $item = [];
                 foreach ($routes as $key => $val) {
                     if (is_numeric($key)) {
                         $key = array_shift($val);
@@ -380,8 +381,7 @@ class Route
                 }
             }
 
-        } else {
-            if ($routes instanceof \Closure) {
+        } elseif ($routes instanceof \Closure) {
             // 闭包注册
             $currentOption  = self::getGroup('option');
             $currentPattern = self::getGroup('pattern');
@@ -393,7 +393,6 @@ class Route
             self::rule($routes, '', '*', $option, $pattern);
         }
     }
-    }
 
     /**
      * 注册路由