【记录】win启动flink后，运行flink命令报错The configuration directory was not specified. Please specify the directory containing the configuration file through the 'FLINK_CONF_DIR' environment variable

报错如图：

解决：要到flink的bin目录下运行命令

参考文章：https://www.liujiajia.me/2019/9/4/install-and-run-flink-on-windows