/**
 * 删除信用卡
 * @param Request $request
 * @return array|\Illuminate\Http\JsonResponse
 * @throws \App\Exceptions\CustomException
 */
public function modifyCreditCardImg(Request $request)
{
    $valid = Validator::make($request->all(), [
        'id' => 'required|string|size:36'
    ]);
    if ($valid->fails()) {
        return array(
            'code' => ExceptionErrorCode::CODEMUST,
            'message' => $valid->errors()->first(),
            'data' => $valid->errors()->first()
        );
    }
    $credit_card = CreditCardImages::where(['id' => $request->id])->get()->first();
    Storage::delete(str_replace('storage', 'public', $credit_card->image_positive));
    Storage::delete(str_replace('storage', 'public', $credit_card->image_back));
    CreditCardImages::where(['id' => $request->id])->delete();
    return responseMessage([], ExceptionErrorCode::OPERATOR_OK);
}

$file =$request->file('pic');
$allowed_extensions = ["png","jpg","jpeg"];
if ($file->getClientOriginalExtension() && !in_array($file->getClientOriginalExtension(), $allowed_extensions)) {
    return redirect()->back()->withInput()->withErrors("只允许上传.jpg .png .jpeg");
}
$path = 'storage/uploads/runner/';
$extension = $file->getClientOriginalExtension();
$fileName = str_random(10).'.'.$extension;
$file->move($path,$fileName);
$filePath = asset($path.$fileName);
$runner->pic = $filePath;

$path = $runner->pic;
$pos = strpos($path, 'storage');
/*dd($pos);*/
$path = substr($path,$pos,strlen($path));

unlink("$path");