document.writeln("<li style=\"padding:8px 8px;\">");
document.writeln("王小丢：");
document.writeln("<span style=\"color:#999;\">");
document.writeln("2017-05-16 20:36:59");
document.writeln("</span><br>");
document.writeln("不好意思，刚看到啊。");
document.writeln("</li>");