从服务器获取数据，上传数据

[{"title":"（ 206 个子文件 1.67MB ） 从服务器获取数据，上传数据","children":[{"title":"classes.dex <span style='color:#111;'> 1.15MB </span>","children":null,"spread":false},{"title":"btn_style_five_pressed.9.png <span style='color:#111;'> 994B </span>","children":null,"spread":false},{"title":"btn_style_one_disabled.9.png <span style='color:#111;'> 1.12KB </span>","children":null,"spread":false},{"title":"search_bar_edit_normal.9.png <span style='color:#111;'> 1.76KB </span>","children":null,"spread":false},{"title":"ic_preference_pressed.9.png <span style='color:#111;'> 252B </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}]