D3可视化入门操作——增加，删除，修改指定元素颜色，文字

D3下载地址：

https://github.com/mbostock/d3/releases/download/v3.4.8/d3.zip

二话不说给代码：

 1 <!DOCTYPE html>
 2 <html>
 3  <head>
 4    <meta charset="utf-8"/>
 5    <title>topology</title>
 6    <script type="text/javascript" src="d3/d3.js"></script>
 7    <script type="text/javascript" src="jquery-2.0.0/jquery.js"></script>
 8  </head>
 9  <body>
10  <p>Sun</p>
11 <p>Moon</p>
12 <p>You</p>
13 <p id="moon">Hello World</p>
14 <script>  
15   d3.select("body").select("p").style("color","red");
16   d3.select("#moon").style("color","red");
17   //末尾插入
18   d3.select("body").append("p").text("Star");
19   //选择之前插入
20   d3.select("body").insert("p","#moon").text("Star");
21   d3.select("#moon").remove();
22 </script> 
23   </body> 
24 
25 </html>