1: 先檢查是否已經依賴是否沒有安裝:
composer require intervention/image
2: 到config/app.php 中添加 下面語句到 providers array:
Intervention\Image\ImageServiceProvider::class,
3: 到config/app.php 添加下面語句到 aliases array:
'Image' => Intervention\Image\Facades\Image::class