jstree獲取半選中節點的方法

$('#jstree1').jstree().get_undetermined();
返回一個數組，getPara();方法無法獲取數組

get_undetermined ([full]) 

get an array of all nodes whose state is "undetermined"

• full:

  boolean if set to `true` the returned array will consist of the full node objects, otherwise - only IDs will be returned

• Returns

  Array