<script type="text/javascript">
var a=0;
setInterval(function(){
a++;
/*这里加什么内容*/
document.body.innerHTML+=a +' ';
},1000);
</script>怎么写 能让输出的内容如下:0 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 0 1 2 3........ 这样循环! 3Q!
var a=0;
setInterval(function(){
a++;
/*这里加什么内容*/
document.body.innerHTML+=a +' ';
},1000);
</script>怎么写 能让输出的内容如下:0 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 0 1 2 3........ 这样循环! 3Q!
<!--
var a = 0;
var flag = true;
setInterval(function(){
/*这里加什么内容*/
document.body.innerHTML += a + " ";
if(a < 9 && flag){
a++;
}else{
a--;
flag = a == 0
}
},100);
//-->
</script>
<script type="text/javascript">
var a=0,range=1;
setInterval(function(){
document.body.innerHTML+= a +' ';
a += range;
if(a==9||a==0) range *= -1;
},500);
</script>
<script src="../JS/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
var a = 0;
window.setInterval(function() {
$("div#counterDiv").html($("div#counterDiv").html()+(a++).toString()+" ");
}, 1000);
});
</script>
<div id="counterDiv">
</div>
重新来<script src="../JS/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
var a = 0;
var sub = false;
window.setInterval(function() {
$("div#counterDiv").html($("div#counterDiv").html() + a.toString() + " ");
if (sub) {
a--;
}
else {
a++;
}
if (a == 9) {
sub = true;
}
if (a == 0) {
sub = false;
} }, 1000);
});
</script>