//UnderlineSpan 下划线
v.text = SpannableStringBuilder(str).apply {
  setSpan(UnderlineSpan(), 0, str.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
}

//ForegroundColorSpan 设置一段文本的颜色
v.text = SpannableStringBuilder("${mData.p1}/${mData.p2}").apply {
  setSpan(ForegroundColorSpan(resources.getColor(R.color.color_0E91)), 0, mData.p1.toString().length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
}