Class 'App\Http\Controllers\DB' not found and I also cannot use a new Model 的解决方

使用laravel的db插入数据

DB::table('tags')->insert(
    ['name'=>'test']
);

报错Class 'App\Http\Controllers\DB' not found and I also cannot use a new Model

解决方法：

在DB前面加个反斜杠

\DB::table('tags')->insert(
    ['name'=>'test']
);