摘要：table tbody { display:block; max-height:300px; overflow-y:scroll;}table thead, tbody tr { display:table; width:100%; table-layout:fixed;} 阅读全文

摘要：//从小到大 messages.sort(function(a, b) { if (a.create_time b.create_time ) { return 1; } else { ... 阅读全文

摘要：https://codepen.io 阅读全文

摘要：var ws = null; //判断当前浏览器是否支持WebSocket if ('WebSocket' in window) { ws = new WebSocket("ws://localhost:8080"); }else { alert('当前浏览器不支持websocket') } //... 阅读全文