authorize('update', $user); return view('users.edit', compact('user')); } public function update(User $user, UserUpdate $request) { $this->authorize('update', $user); $attribute = $request->only(['name', 'email', 'introduction']); if ($image = $request->file('avatar')) { $user->avatar = $image->store('public/avatar'); $file = Image::make(storage_path('app/' . $user->avatar)); $file->resize(1280, null, function ($constraint) { // 设定宽度是 $max_width,高度等比例双方缩放 $constraint->aspectRatio(); // 防止裁图时图片尺寸变大 $constraint->upsize(); }); // 对图片修改后进行保存 $file->save(); } $user->update($attribute); return redirect()->route('users.show', [$user])->with('success', '更新成功!'); } }