如何使用JavaScript返回或设置列的宽度？
使用JavaScriptcolumnWidth属性设置列的宽度。
示例
您可以尝试运行以下代码以使用JavaScript设置列的宽度：
<!DOCTYPE html>
<html>
<body>
<p>Set the width of the columns</p>
<button onclick="display()">Change Width</button>
<div id="myID">
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This is Demo Text. This is Demo Text. This is Demo Text. This is Demo Text.
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This is Demo Text. This is Demo Text. This is Demo Text. This is Demo Text.
</div>
<script>
function display() {
document.getElementById("myID").style.columnWidth = "70px";
}
</script>
</body>
</html>