e.json

{
"name":"如何学习D3",
"children":
[
	{ 
	  "name":"预备知识" , 
  	  "children":
  	  [
	  	  	{"name":"HTML & CSS" },
	  	  	{"name":"JavaScript" },
	  	  	{"name":"DOM" },
	  	  	{"name":"SVG" }
  	  ] 
  	},
  	
	{ 
		"name":"安装" , 
		"children":
		[
			{
				"name":"记事本软件",
				"children":
				[
					{"name":"Notepad++"},
					{"name":"qqqq"},
					{"name":"Sublime Text"}
				]
			},
			{
				"name":"服务器软件",
				"children":
				[
					{"name":"Apache Http Server"},
					{"name":"Tomcat"}
				]
			},
			{"name":"下载D3.js"}
		] 
	},
	
	{ 
		"name":"入门",
		"children":
		[
			{
				"name":"选择集",
				"children":
				[
					{"name":"select"},
					{"name":"selectAll"}
				]
			},
			{
				"name":"绑定数据",
				"children":
				[
					{"name":"datum"},
					{"name":"data"}
				]
			},
			{"name":"添加删除元素"},
			{
				"name":"简单图形",
				"children":
				[
					{"name":"柱形图"},
					{"name":"折线图"},
					{"name":"散点图"}
				]
			},
			{"name":"比例尺"},
			{"name":"生成器"},
			{"name":"过渡"}
		] 
	},
	
	{ 
		"name":"进阶" , 
		"children":
		[
			{
				"name":"布局的应用",
				"children":
				[
					{"name":"饼状图"},
					{"name":"树状图"},
					{"name":"矩阵树图"}
				]
			},
			{"name":"地图",
      "children":
      [
        	{"name":"饼状图"},
					{"name":"树状图"},
					{"name":"矩阵树图"}
      ]
      
      }
		]
	}
]
}