基本树
   

  
基本树
   

在原有的树干上添加树杈：

layui.use(['tree', 'layer'], function(){  var layer = layui.layer  ,$ = layui.jquery;     layui.tree({    elem: '#demo1' //指定元素    ,target: '_blank' //是否新选项卡打开（比如节点返回href才有效）    ,click: function(item){ //点击节点回调      layer.msg('当前节名称：'+ item.name + '
全部参数：'+ JSON.stringify(item));      console.log(item);    }    ,nodes: [ //节点      {        name: '树干'        ,id: 2        ,spread: true        ,children: [          {            name: '树杈1'            ,id: 21            ,spread: true                      }, {            name: '树杈2'            ,id: 22                     }        ]      }          ]  });

再在之前的基础上添加树枝：

layui.tree({    elem: '#demo1' //指定元素    ,target: '_blank' //是否新选项卡打开（比如节点返回href才有效）    ,click: function(item){ //点击节点回调      layer.msg('当前节名称：'+ item.name + '
全部参数：'+ JSON.stringify(item));      console.log(item);    }    ,nodes: [ //节点      {        name: '树干'        ,id: 2        ,spread: true        ,children: [          {            name: '树杈1'            ,id: 21            ,spread: true            ,children: [              {                name: '树枝'                ,id: 211                              }            ]          }, {            name: '树杈2'            ,id: 22            ,children: [              {                name: '树枝'                ,id: 221              }            ]          }        ]      }          ]  });

再在之前的基础上添加树叶：

layui.tree({    elem: '#demo1' //指定元素    ,target: '_blank' //是否新选项卡打开（比如节点返回href才有效）    ,click: function(item){ //点击节点回调      layer.msg('当前节名称：'+ item.name + '
全部参数：'+ JSON.stringify(item));      console.log(item);    }    ,nodes: [ //节点      {        name: '树干'        ,id: 2        ,spread: true        ,children: [          {            name: '树杈1'            ,id: 21            ,spread: true            ,children: [              {                name: '树枝'                ,id: 211                ,children: [                  {                    name: '树叶1'                    ,id: 2111                  }, {                    name: '树叶2'                    ,id: 2112                  }, {                    name: '树叶3'                    ,id: 2113                  }                ]              }            ]          }, {            name: '树杈2'            ,id: 22            ,children: [              {                name: '树枝'                ,id: 221              }            ]          }        ]      }          ]  });

添加个清空的按钮：

清空

点击清空按钮，调用点击事件清除树

$(".layui-btn").click(function(){$('ul li').remove();});

方法/步骤2

完整代码：

                            
基本树