简单的按钮值刷新JS代码 function startTest(){ var sb = document.getElementById('startButton'); sb.disabled = true; for(i=1;i<=100;i++){ window.setTimeout("update("+i+")", i*1000); }}function update(num) { var sb = document.getElementById('startButton'); if(num == 100) { sb.innerText ="测试"; sb.disabled = false; }else { sb.value = "测试中("+num+"%)"; }} 转载于:https://www.cnblogs.com/zzkun/archive/2010/06/08/4481831.html