两两匹配的方法

<script type="text/javascript">
 
 
      var specData =  { 
      277: {
        133: "11",
        134: "12"
      },
      278: {
        135: "21",
        136: "22"
      },
      279: {
        137: "31",
        138: "32"
      },
      280: {
        139: "41",
        140: "42"
      },
      281: {
        141: "43",
        142: "44",
        143: "45",
      },
    }
 
 
 
    var valData = Object.values(specData)
    var arrData = []
    var listData;
 
 
    valData.forEach(item => {
      arr = [];
      Object.keys(item).forEach(key => {
        arr.push({[key]: item[key]});
      })
      arrData.push(arr)
    })
 
    arrData.map((item,i)=>{
        if (i == 0) {
            listData =  setData(arrData[i],arrData[i+1])
        } else if ( i < arrData.length-1) {
            listData =  setData(listData, arrData[i+1])
        }
    })
 
    console.log(listData)
 
    function setData(list1=[],list2=[]){
        var arr = [];
        for(var i=0;i<list1.length;i++){
            for(var j=0;j<list2.length;j++){
                arr.push(Object.assign({},list1[i],list2[j]))
            }
        }
        return arr;
    }
</script>