var zNodes =[
      { id:1, pId:0, name:"父节点 1", open:true,isLeaf:false},
      { id:11, pId:1, name:"叶子节点 1-1",isLeaf:true},
      { id:12, pId:1, name:"叶子节点 1-2",open:true,isLeaf:false},
      { id:120, pId:12, name:"叶子节点 1-2-0",isLeaf:true},
      { id:121, pId:12, name:"叶子节点 1-2-1",isLeaf:true},
      { id:13, pId:1, name:"叶子节点 1-3",isLeaf:true},
      { id:2, pId:0, name:"父节点 2", open:true,isLeaf:false},
      { id:21, pId:2, name:"叶子节点 2-1",isLeaf:true},
      { id:22, pId:2, name:"叶子节点 2-2",isLeaf:true},
      { id:23, pId:2, name:"叶子节点 2-3",isLeaf:true},
      { id:3, pId:0, name:"父节点 3", open:true,isLeaf:false},
      { id:31, pId:3, name:"叶子节点 3-1",isLeaf:true},
      { id:32, pId:3, name:"叶子节点 3-2",isLeaf:true},
      { id:33, pId:3, name:"叶子节点 3-3",isLeaf:true}
    ];

function addDiyDom(treeId, treeNode) {
      //console.log(treeNode);
      var aObj = $("#" + treeNode.tId + IDMark_A);
      var editStr = $("<input type='checkbox' class='checkboxBtn' id='checkbox_" +treeNode.id+ "' onclick='checkedHandler(this)' ></input>");
      editStr.data("treeNode",treeNode);
      aObj.before(editStr);
    
    }

function checkedHandler(checkbox){
      var $checkbox = $(checkbox),
        treeNode = $checkbox.data("treeNode"),
        state = checkbox.checked;
        if(treeNode.isLeaf){ //子节点
          if(state){ //子节点选中，父节点要跟着选中，子节点取消选择，父节点不用级联
            setParentNodeChecked(checkbox);
          }
        }else{ //父节点
          if(state){ //选中，级联子节点，级联父节点
            setParentNodeChecked(checkbox);
            setChildNodeChecked(checkbox);
          }else{
            setChildNodeChecked(checkbox);
          }
        }
    }
    /**设置父节点选中 */
    function setParentNodeChecked(checkbox){
      var $pNode = $(checkbox).closest("ul").parent();
      var pCheckbox = $pNode.find(".checkboxBtn").get(0);
      var treeNode = $(pCheckbox).data("treeNode");
      if(pCheckbox.checked === checkbox.checked) return;
      pCheckbox.checked = checkbox;
      if(treeNode.pId != "0") setParentNodeChecked(pCheckbox);
    }
    /**设置子节点选中 */
    function setChildNodeChecked(checkbox){
      $(checkbox).closest("li").find(".checkboxBtn").each(function(){
        this.checked = checkbox.checked;
      });
    }

.ztree li.isLeaf{
　　display:inline;
 }