list 是数组   student_all 是对象  students是key   对象才有方法

{{$student_all -> render()}}

原因：上面的foreach中$students与下面分页的$students冲突，可把上面的foreach中的$students as $students改成$students as $key，然后$students->id改成$key->id，依次类推

ErrorExceptionin Builder.php line 2405:                            Call to undefined method Illuminate\Database\Query\Builder::render() (View: E:\phpStudy\WWW\laravel\resources\views\student\index.blade.php)

BadMethodCallExceptionin Builder.php line 2405:                            Call to undefined method Illuminate\Database\Query\Builder::render()

帮忙解决一下啊