<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>testD3-3-drawingDivBar</title>
<script type="text/javascript" src="http://localhost:8080/spring/js/d3.js"></script>
<style type="text/css">
div.bar {
display: inline-block;
width: 20px;
margin-right: 2px;
background-color: teal;
}
</style>
</head>
<body>
<script type="text/javascript"> var dataset = [ 5, 10, 15, 20, 25 ]; d3.select("body").selectAll("div")
.data(dataset)
.enter()
.append("div")
.attr("class", "bar")
.style("height", function(d) {
return (d * 5) + "px";
}); </script>
</body>
</html>
代码解释：
1.1 为同类层添加样式
div.bar {
display: inline-block;
width: 20px;
background-color: teal;
}
1.2 声明要为某类层设置属性
.attr("class", "bar")
1.3 为每个特定的层设置属性
.style("height", function(d) {
return (d * 5) + "px";
});
1.4 设置层之间的间隔
margin-right: 2px;