月份数据统计，后台返回数据拆分12个对象，代表12个月份，而且月份没有顺序，没有的数据的赋值为0

    let rawData = {
      One:[{month:1,count:10},{month:12,count:2}],
      Two::[{month:1,count:14},{month:3,count:23}],
      Three:[],
      Four::[{month:1,count:10}],
    };
    // 拆分成想要的数据 ysdList、lydList、tzdList、bfdList都会包含12个对象，12个月份，而且对象没有顺序，没有的count赋值为0
    // ysdList:[10,0,0,0,0,0,0,0,0,0,0,2]
    // lydList:[14,0,23,0,0,0,0,0,0,0,0,0]
    // tzdList:[0,0,0,0,0,0,0,0,0,0,0,0]
    // bfdList:[10,0,0,0,0,0,0,0,0,0,0,0]
        let targetData = {
          ysdList: [],
          lydList: [],
          tzdList: [],
          bfdList: [],
        };
        for (let i = 1; i < 13; i++) {
          let ss = [];
          if (!rawData.One) {
            ss = [];
          } else {
            ss = rawData.One.filter((item) => {
              return item.month == i;
            });
          }
          if (ss.length <= 0) {
            targetData.ysdList.push("0");
          } else {
            targetData.ysdList.push(ss[0].count + "");
          }

          let aa = [];
          if (!rawData.Two) {
            aa = [];
          } else {
            aa = rawData.Two.filter((item) => {
              return item.month == i;
            });
          }
          if (aa.length <= 0) {
            targetData.lydList.push("0");
          } else {
            targetData.lydList.push(aa[0].count + "");
          }

          let bb = [];
          if (!rawData.Three) {
            bb = [];
          } else {
            bb = rawData.Three.filter((item) => {
              return item.month == i;
            });
          }
          if (bb.length <= 0) {
            targetData.tzdList.push("0");
          } else {
            targetData.tzdList.push(bb[0].count + "");
          }
          let cc = [];
          if (!rawData.Four) {
            cc = [];
          } else {
            cc = rawData.Four.filter((item) => {
              return item.month == i;
            });
          }
          if (cc.length <= 0) {
            targetData.bfdList.push("0");
          } else {
            targetData.bfdList.push(cc[0].count + "");
          }
     
        }
        this.picList = { ...targetData };