BootstrapTreeView的js下载位置：https://github.com/patternfly/patternfly-bootstrap-treeview。（注意不是https://github.com/jonmiles/bootstrap-treeview，这个版本没有懒加载功能。）
各个js需要下载下来放到相应位置。(主义还有个jquery.js)
补充Node操作方法
Add nodes to the tree.
$('#tree').treeview('addNode', [ nodes, parentNode, index, { silent: true } ]);
If parentNode evaluates to false, node will be added to root If index evaluates to false, node will be appended to the nodes
Triggers nodeRendered event; pass silent to suppress events.
Removes given nodes from the tree.
$('#tree').treeview('removeNode', [ nodes, { silent: true } ]);
Updates / replaces a given tree node.
$('#tree').treeview('updateNode', [ node, newNode, { silent: true } ]);
Triggers nodeRendered event; pass silent to suppress events.
Original: https://www.cnblogs.com/magel/p/14893526.html
Author: magel
Title: BootstrapTreeView 实现懒加载和点击事件。
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