改进Loader类

library/think/Loader.php

@@ -151,6 +151,14 @@ class Loader
                     }
                 }
             } else {
+                self::scanComposerPackage();
+            }
+        }
+    }
+
+    // 扫描composer package
+    private static function scanComposerPackage()
+    {
         // 自动扫描下载Composer安装类库
         $dirs      = scandir(VENDOR_PATH, 1);
         $namespace = [];
@@ -171,9 +179,6 @@ class Loader
         }
     }
 
-        }
-    }
-
     // 解析Composer Package
     private static function parseComposerPackage($package)
     {