use int if you have a small number of classes,
失去驾驶乐趣，是AI时代汽车消费者最大的悲哀。
，详情可参考WPS下载最新地址
Streaming server-side rendering (SSR) is a particularly painful case. A typical SSR stream might render thousands of small HTML fragments, each passing through the streams machinery:
luajit2.1-luv-1.51.0.0-2.fc42.x86_64