element Progress 進度條超出100%會報錯，且不展示進度值的解決辦法

示例一：

<el-progress
                :text-inside="true"
                :stroke-width="17"
                :format="_format(row.reached)"
                :percentage="row.reached > 100 ? 100 : row.reached"
              ></el-progress>

    _format(value) {
      return () => {
        return value + '%'
      }
    },

示例二：

<el-progress
            type="circle"
            :stroke-width="12"
            :format="format(item.reached)"
            :percentage="item.reached > 100 ? 100 : item.reached"
          ></el-progress>

    format(percentage) {
      return () => {
        return percentage + '%' + '\n' + ' 已完成'
      }
    },