重新加载动画

itemChart4.clear();
itemChart4.setOption(itemoption1);

      var mychart = echarts.init(document.getElementById('center-top-chart'));
      var option = {
        title: {
          text: ''
        },
        tooltip: {},
        legend: {
          data: []
        },
        grid: {
          top: "3%",
          left: "4%",
          right: "4%",
          bottom: 60,
        },
        xAxis: {
          data: ["00:00", "01:00", "02:00", "03:00"],
          "axisTick": {       //x轴刻度线
            "show": false
          },
          axisLine: {
            lineStyle: {
              color: '#C4C6CF', // 颜色
              width: 1 // 粗细
            },
          },
          axisLabel: {
            textStyle: {
              color: '#000',  //更改坐标轴文字颜色
              fontSize: 12      //更改坐标轴文字大小
            }
          }
        },
        yAxis: {
          "axisLine": {  // y轴
            "show": false
          },
          "axisTick": {       //y轴刻度线
            "show": false
          },
          splitLine: {  // y轴网格线
            show: true,
            lineStyle: {
              color: ['#EBECF0'],
              width: 1,
              type: 'solid'
            }
          }
        },
        series: [{
          name: '销量',
          type: 'bar',
          data: [5, 20, 36, 10, 10, 20],
          stack: '总量',
          itemStyle: {
            normal: {
              color: yellow,      // 拐点颜色
              // borderColor: green,  // 拐点边框颜色
            }
          },
        }, {
          name: '销量2',
          type: 'bar',
          data: [5, 20, 36, 10, 10, 20],
          stack: '总量',
          itemStyle: {
            normal: {
              color: '#F7F8FA',      // 拐点颜色
              // borderColor: green,  // 拐点边框颜色
            }
          },
        }]
      };
      mychart .setOption(option);