效果图如下:
代码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>随机选号器</title>
<!-- <link rel="stylesheet" href="css/change.css" type="text/css"/> -->
<style>
.text1{
height: 400px;
width: 400px;
font-size: 340px;
border: 5px dashed cornflowerblue;
border-radius: 10px;
text-align: center;
}
.text2{
position:relative;
top: 40px;
left: -90px;
height: 40px;
width: 100px;
}
.text3{
position: relative;
top: 40px;
left: 90px;
height: 40px;
width: 100px;
}
div{
text-align: center;
}
</style>
<script>
var timer;
function startText(){
var d=new Date();
var minute=d.getMinutes()
var num = Math.floor(Math.random()*100);
document.getElementById("myText").value = num;
timer = setTimeout("startText()",60);
}
function stopText(){
clearTimeout(timer);
}
window.onload=function(){
window.requestAnimationFrame(getDate)
}
function getDate(){
window.setTimeout(function(){
window.requestAnimationFrame(getDate)
},1000/2)
var d=new Date();
var year=d.getFullYear()
var month=d.getMonth()+1;
var day=d.getDay()
var days=d.getDate()
var hour=d.getHours()
var minute=d.getMinutes()
var second=d.getSeconds()
if(month<10) month="0"+month
if(days<10) days="0"+days
if(hour<10) hour="0"+hour
if(minute<10) minute="0"+minute
if(second<10) second="0"+second
var week=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六")
var Tools=document.getElementById("Main")
var da=year+" 年 "+month+" 月 "+days+" 日 "+week[day]+" "+hour+" : "+minute+" :"+second
Tools.innerHTML=da
}
</script>
</head>
<body>
<div>
<div id="Main"></div>
<form>
<input type="text" class="text1" value="0" id="myText"/><br />
<input type="button" class="text2" value="开始" onclick="startText()"/>
<input type="button" class="text3" value="停止" onclick="stopText()"/> <!--onclick事件会在元素被点击时发生-->
</form>
</div>
<script type="text/javascript" src="js/p1.js"></script>
</body>
</html>
下面是在上方基础上做了一些限制,一分钟内只能生成一个随机数
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>随机选号器</title>
<!-- <link rel="stylesheet" href="css/change.css" type="text/css"/> -->
<style>
.text1{
height: 400px;
width: 400px;
font-size: 340px;
border: 5px dashed cornflowerblue;
border-radius: 10px;
text-align: center;
}
.text2{
position:relative;
top: 40px;
left: -90px;
height: 40px;
width: 100px;
}
.text3{
position: relative;
top: 40px;
left: 90px;
height: 40px;
width: 100px;
}
div{
text-align: center;
}
</style>
<script>
var timer;
var minusted=0;
var isState=0;
function startText(){
var d=new Date();
var minute=d.getMinutes()
if(minute>minusted){
minusted=minute;
isState+=1;
if(isState>1){
isState=1;
}
document.getElementById("my2").value = isState;
}
if(isState==1){
var num = Math.floor(Math.random()*100);
document.getElementById("myText").value = num;
timer = setTimeout("startText()",60);
}
}
function stopText(){
isState+=1;
clearTimeout(timer);
}
window.onload=function(){
window.requestAnimationFrame(getDate)
}
function getDate(){
window.setTimeout(function(){
window.requestAnimationFrame(getDate)
},1000/2)
var d=new Date();
var year=d.getFullYear()
var month=d.getMonth()+1;
var day=d.getDay()
var days=d.getDate()
var hour=d.getHours()
var minute=d.getMinutes()
var second=d.getSeconds()
if(month<10) month="0"+month
if(days<10) days="0"+days
if(hour<10) hour="0"+hour
if(minute<10) minute="0"+minute
if(second<10) second="0"+second
var week=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六")
var Tools=document.getElementById("Main")
var da=year+" 年 "+month+" 月 "+days+" 日 "+week[day]+" "+hour+" : "+minute+" :"+second
Tools.innerHTML=da
}
</script>
</head>
<body>
<div>
<div id="Main"></div>
<form>
<input type="text" class="text1" value="0" id="myText"/><br />
<input type="button" class="text2" value="开始" onclick="startText()"/>
<input type="button" class="text3" value="停止" onclick="stopText()"/> <!--onclick事件会在元素被点击时发生-->
</form>
</div>
<script type="text/javascript" src="js/p1.js"></script>
</body>
</html>