Echarts的toolbox自定义按钮

[{"title":"（ 113 个子文件 4.19MB ） Echarts的toolbox自定义按钮","children":[{"title":"portal.css <span style='color:#111;'> 26.02KB </span>","children":null,"spread":false},{"title":"bootstrap.min.css <span style='color:#111;'> 122.10KB </span>","children":null,"spread":false},{"title":"bootstrap-table.min.css <span style='color:#111;'> 5.43KB </span>","children":null,"spread":false},{"title":"common.css <span style='color:#111;'> 4.57KB </span>","children":null,"spread":false},{"title":"red_down.png <span style='color:#111;'> 1.16KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]