安装think-queue

php版本7.3
tp版本5.1
composer.json把"topthink/think-queue": "2.0.3"添加到require

   "require": {
        "php": ">=5.6.0",
        "topthink/framework": "5.1.*",
        "topthink/think-captcha": "2.*",
        "jaeger/querylist": "^4.1",
        "topthink/think-queue": "2.0.3"
    },

先把 composer.lock 删除
然后运行composer update

或者直接composer require topthink/think-queue 2.0.3 但是require的话，这版本号我不清楚这样写对不对，大家可以研究一下