需求说明：当一个节点值为特定值的时候，改变该节点下另外一个值。

    实现思路如下：
    代码如下实现：

    1. //报文结构
    2. var arr = [{
    3.             id: 1,
    4.             pid: 0,
    5.             name: "大良造菜单",
    6.             open: true,
    7.             nocheck: false,
    8.             children: [{
    9.                     id: 11,
    10.                     pid: 1,
    11.                     name: "当前项目"
    12.                 },
    13.                 {
    14.                     id: 12,
    15.                     pid: 1,
    16.                     name: "工程管理",
    17.                     open: true,
    18.                     children: [{
    19.                             id: 121,
    20.                             pid: 12,
    21.                             name: "我的工程"
    22.                         },
    23.                         {
    24.                             id: 122,
    25.                             pid: 12,
    26.                             name: "施工调度"
    27.                         },
    28.                         {
    29.                             id: 1211,
    30.                             pid: 12,
    31.                             name: "材料竞价"
    32.                         }
    33.                     ]
    34.                 },
    35.                 {
    36.                     id: 13,
    37.                     pid: 1,
    38.                     name: "录入管理",
    39.                     open: true,
    40.                     children: [{
    41.                             id: 131,
    42.                             pid: 12,
    43.                             name: "用工录入",
    44.                             children: [],
    45.                             isParent: false
    46.                         },
    47.                         {
    48.                             id: 132,
    49.                             pid: 12,
    50.                             name: "商家录入"
    51.                         },
    52.                         {
    53.                             id: 1314,
    54.                             pid: 12,
    55.                             name: "机构列表"
    56.                         }
    57.                     ]
    58.                 },
    59.                 {
    60.                     id: 14,
    61.                     pid: 1,
    62.                     name: "审核管理",
    63.                     open: true,
    64.                     children: [{
    65.                             id: 141,
    66.                             pid: 14,
    67.                             name: "用工审核"
    68.                         },
    69.                         {
    70.                             id: 142,
    71.                             pid: 14,
    72.                             name: "商家审核"
    73.                         },
    74.                         {
    75.                             id: 145,
    76.                             pid: 14,
    77.                             name: "机构审核"
    78.                         }
    79.                     ]
    80.                 },
    81.                 {
    82.                     id: 15,
    83.                     pid: 1,
    84.                     name: "公司管理",
    85.                     open: false,
    86.                     children: [{
    87.                             id: 1517,
    88.                             pid: 15,
    89.                             name: "我的工程案例"
    90.                         },
    91.                         {
    92.                             id: 1518,
    93.                             pid: 15,
    94.                             name: "联系人设置"
    95.                         },
    96.                         {
    97.                             id: 1519,
    98.                             pid: 15,
    99.                             name: "广告设置"
    100.                         }
    101.                     ]
    102.                 },
    103.                 {
    104.                     id: 16,
    105.                     pid: 1,
    106.                     name: "业务管理",
    107.                     open: true,
    108.                     children: [{
    109.                             id: 164,
    110.                             pid: 16,
    111.                             name: "合同范本"
    112.                         },
    113.                         {
    114.                             id: 165,
    115.                             pid: 16,
    116.                             name: "合同列表"
    117.                         },
    118.                         {
    119.                             id: 166,
    120.                             pid: 16,
    121.                             name: "需求调度"
    122.                         }
    123.                     ]
    124.                 },
    125.                 {
    126.                     id: 17,
    127.                     pid: "x",
    128.                     name: "订单管理",
    129.                     open: true,
    130.                     children: [{
    131.                             id: 171,
    132.                             pid: 17,
    133.                             name: "商品订单"
    134.                         },
    135.                         {
    136.                             id: 172,
    137.                             pid: 17,
    138.                             name: "用工订单"
    139.                         },
    140.                         {
    141.                             id: 175,
    142.                             pid: 17,
    143.                             name: "供应菜单"
    144.                         }
    145.                     ]
    146.                 }
    147.             ]
    148.         }];
    150.         function treeForeach(tree, func) {
    151.             tree.map(data => {
    152.                 func(data)
    153.                 data.children && treeForeach(data.children, func) // 遍历子树
    154.             })
    155.         }
    156.         treeForeach(arr, node => {
    157.             if (node.pid == 'x'){
    158.                 node.name = "666";
    159.             }
    160.             console.log(arr);
    161.             // console.log(arr);
    162.         })

    整体代码偏简练，不断的调用子树，知道最深层结构为止。