text: Component({
      properties: {
          size: {
              type: Number,
              value: 30
          },
          color: {
              type: String,
              value: '#1890ff'
          },
          showTip: {
              type: Boolean,
              value: false
          },
          tip: {
              type: String,
              value: '加载中...'
          }
      }
  });
  