无限级树形菜单（支持多选）

[{"title":"（ 1296 个子文件 8.12MB ） 无限级树形菜单（支持多选）","children":[{"title":"gradlew <span style='color:#111;'> 4.85KB </span>","children":null,"spread":false},{"title":"settings.gradle <span style='color:#111;'> 16B </span>","children":null,"spread":false},{"title":"animated_vector_drawable_23_2_0.xml <span style='color:#111;'> 651B </span>","children":null,"spread":false},{"title":"support_annotations_23_2_0.xml <span style='color:#111;'> 507B </span>","children":null,"spread":false},{"title":"support_v4_23_2_0.xml <span style='color:#111;'> 909B </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}]