JS如何获取某个div下存在多少个子div
1个回答
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<script>
window.onload = function () {
var myDiv = document.getElementById("myDiv");
var div_s = myDiv.getElementsByTagName("div");
alert(div_s.length);
}
</script>
<body>
<div id="myDiv" >
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>
</body>
window.onload = function () {
var myDiv = document.getElementById("myDiv");
var div_s = myDiv.getElementsByTagName("div");
alert(div_s.length);
}
</script>
<body>
<div id="myDiv" >
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>
</body>
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