SOURCE

console 命令行工具 X clear

                    
>
console
function setProcess() {
  var processbar = document.getElementById("processbar");
  processbar.style.width = parseInt(processbar.style.width) + 1 + "%";
  processbar.innerHTML = processbar.style.width;
  if (processbar.style.width == "100%") {
    window.clearInterval(bartimer);
  }
}
var bartimer = window.setInterval(setProcess, 100);
window.onload = function() {
  bartimer
}
<html>
  
  <head>
    <title>
      进度条
    </title>
  </head>
  
  <body>
    <div class="processcontainer">
      <div id="processbar" style="width:0%;">
      </div>
    </div>
    出现了一点小故障,至于是什么故障,小弟需要保密
  </body>

</html>
.processcontainer {
  width: 450px;
  border: 1px solid #6C9C2C;
  height: 25px;
}

#processbar {
  background: #95CA0D;
  float: left;
  height: 100%;
  text-align: center;
  line-height: 150%;
}