document.writeln("<li style=\"padding:8px 8px;\">");
document.writeln("采菊小生：");
document.writeln("<span style=\"color:#999;\">");
document.writeln("2017-06-29 19:50:10");
document.writeln("</span><br>");
document.writeln("我也想知道啊");
document.writeln("</li>");