扁平对象 转化为 树形对象

var input = {

  h3: {

    parent: 'h2',

    name: '副总经理(市场)'

  },

  h1: {

    parent: 'h0',

    name: '公司机构'

  },

  h7: {

    parent: 'h6',

    name: '副总经理(总务)'

  },

  h4: {

    parent: 'h3',

    name: '销售经理'

  },

  h2: {

    parent: 'h1',

    name: '总经理'

  },

  h8: {

    parent: 'h0',

    name: '财务总监'

  },

  h6: {

    parent: 'h4',

    name: '仓管总监'

  },

  h5: {

    parent: 'h4',

    name: '销售代表'

  },

  h0: {

    parent: '',

    name: 'root'

  }

};

function plain2Tree (obj) {

  var key, res

  for(key in obj) {

    var parent = obj[key].parent

    if(parent === '') {

      res = obj[key]

    } else {

      obj[parent][key] = obj[key]

    }

  }

  console.log(res)

  // return res

}

plain2Tree(input)