<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>整数取余案例(蔡丢丢专用)</title>
</head>
<body>
<div id="diudiu">
</div>
</body>
<script>
var len = 10;
var diudiu = document.getElementById("diudiu");
for (var index = 0; index <= 100; index++) {
diudiu.innerHTML += '<div>index='+index+'------->index%len='+index%len+'</div>';
}
</script>
</html>
师傅不厌其烦的给我讲，还专门写了个案例---很感动