
composer require simplesoftwareio/simple-qrcode
SimpleSoftwareIO\QrCode\QrCodeServiceProvider::class,'QrCode' => SimpleSoftwareIO\QrCode\Facades\QrCode::class,<?php
namespace App\Http\Controllers;
use QrCode;//引入二维码类
class UserController extends Controller
{
public function Upload()
{
echo QrCode::generate('Hello,LaravelAcademy!');//生成一个二维码
}
}