elementUI表格树动态合并列问题处理（最终版，---新需求）
在之前的一篇博客中针对这个问题，写了解决方法。现在是加了新需求，发现之前的算法有一些不足之处，现在进行纠正。
目前表格的需求是：
评估人/评估分数/加减分说明，这个组合，根据评估人相同，就列合并；指标项目，评估人是为空的，这个组合都不合并；
处理人/处理分数/加减分说明，这个组合，是动态表头，有可能只有一个组合，也有可能有2个组合，也有可能是3个组合；处理人是全合并，处理分数/加减分说明是指标项目，不合并，非指标项目全合并。
实现的效果图如下：
具体实现代码如下：（这里是以弹窗为例的。也可以不写在弹窗中。）
考核周期：
2019年11月考核
姓名：张三
{{"提前"}}
{{"正常"}}
{{"滞后"}}
{{"已完成"}}
{{"暂停"}}
{{"中止"}}
{{"未启动"}}
代码到此就完成了。
其中需要注意的就是：row与col的合并，上面代码中，例入spanArr=[1,99,99,3,0,0] 99就代表row为0，col也为0，是被收起来的树节点的子节点，需要被隐藏掉；这种场景代表项目1为关闭，隐藏项目1下的子节点，项目2为打开，col需要合并为3，0，0，row都为1，0代表的是col此时不合并。
需要注意的第二点就是：当得到的人名组合为kpiObjArr=[a,22,22,b,b,b]，如何将这个数组变为[1,99,99,3,0,0]这样的格式，22上述代码中已写过备注，代表被收起来的子节点，需要被隐藏。【kpiObjArr的场景非常多，这里再说几个例子 ：
kpiObjArr=[a,22,22,a,a,a,b,b,b] --------------------------------------------------spanArr=[4,0,0,0,99,99,3,0,0]
kpiObjArr=[a,22,22,a,22,22,b,22,22]------------------------------------------------------spanArr=[2,0,99,99,99,99,1,99,99]
需要找到规律，来将这个数组进行转化成功，最后再表格自带的合并方法中进行渲染，
】
下面补充一下，后台返回的tableData的数据格式（数据多，所以没有写在上面进行定义）
// 后台返回的表格数据
tableData: [
{
id: '1191670059258875904',
isFixed: false,
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
kpiScore: 99,
name: "王五",
num: 2,
objectName: "项目1",
remarks: null,
selfRating: null,
timelong: null,
weight: null,
workProgress: null,
workStatus: null,
assesseDiffScoreDescribe: 'null',
children:[
{
id: "11916698122256666",
name: "王五",
objectName: "工作项1",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '',
approverName2: '',
approverName3: '',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: null,
score2: null,
score3: null,
},
{
id: "2222222333322999999",
name: "王五",
objectName: "工作项2",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
}
]
},
{
id: '11916700592588759042',
isFixed: false,
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
kpiScore: 88,
name: "王五",
num: 2,
objectName: "项目2",
remarks: null,
selfRating: null,
timelong: null,
weight: null,
workProgress: null,
workStatus: null,
assesseDiffScoreDescribe: 'null333',
children:[
{
id: "119166981222566662",
name: "王五",
objectName: "工作项1",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '',
approverName2: '',
approverName3: '',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: null,
score2: null,
score3: null,
},
{
id: "22222223333229999992",
name: "王五",
objectName: "工作项2",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
},
{
id: "00000000002",
name: "王五",
objectName: "工作项3",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
}
]
},
{
id: '11916700592588759042a',
isFixed: false,
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
kpiScore: 100,
name: "aaa兰",
num: 2,
objectName: "项目3",
remarks: null,
selfRating: null,
timelong: null,
weight: null,
workProgress: null,
workStatus: null,
assesseDiffScoreDescribe: null,
children:[
{
id: "119166981222566662a",
name: "aaa兰",
objectName: "工作项1",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '',
approverName2: '',
approverName3: '',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: null,
score2: null,
score3: null,
},
{
id: "00000000002a",
name: "aaa兰",
objectName: "工作项2",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 100,
score2: 100,
score3: 100,
}
]
},
{
id: '9',
isFixed: true,
approverName1: '',
approverName2: '',
approverName3: '',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: null,
score2: null,
score3: null,
kpiScore: '',
name: "",
num: 2,
objectName: "指标项目1",
remarks: null,
selfRating: null,
timelong: null,
weight: null,
workProgress: null,
workStatus: null,
assesseDiffScoreDescribe: null,
children:[
{
id: "99",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 50,
score2: 40,
score3: 60,
name: "",
objectName: "指标1",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
kpiScore: '',
},
{
id: "999",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 101,
score2: 102,
score3: 103,
name: "",
objectName: "指标2",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
kpiScore: '',
}
]
},
{
id: '91',
isFixed: true,
approverName1: '',
approverName2: '',
approverName3: '',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: null,
score2: null,
score3: null,
kpiScore: '',
name: "",
num: 2,
objectName: "指标项目2",
remarks: null,
selfRating: null,
timelong: null,
weight: null,
workProgress: null,
workStatus: null,
assesseDiffScoreDescribe: null,
children:[
{
id: "991",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 50,
score2: 40,
score3: 60,
name: "",
objectName: "指标项1",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
kpiScore: '',
},
{
id: "9991",
approverName1: '张三',
approverName2: '王五',
approverName3: '李四',
approverDiffScoreDescribe1: '',
approverDiffScoreDescribe2: '',
approverDiffScoreDescribe3: '',
score1: 101,
score2: 102,
score3: 103,
name: "",
objectName: "指标项2",
remarks: "垃圾数据22019-11-05周报：已完成",
selfDiffScoreDescribe: null,
selfRating: 100,
timelong: 8,
weight: 100,
workProgress: 100,
workStatus: "4",
kpiScore: '',
}
]
},
],