sliderColorPick

必须设置 
lineLength 色带的长度  建议 300
sliderBtn  滑动按钮的大小 建议 12

index.json
{
"usingComponents": {
 "slider-color-picker":"../../components/sliderColorPicker/sliderColorPicker"
}
}   

index.html
  <slider-color-picker bindmoveSlider="sliderColor" lineLength = "300" sliderBtn="12"></slider-color-picker>

index.js

 sliderColor(e) {
    this.setData({
      color:e.detail
    })
  }