A组件的高度由B组件决定，但是B组件的高度不确定，类似的问题有解决方式么？

getLastMinHeight(minHeight: number, count: number, gapLength: number, countHeight: number): number {  
  const gapHeightSum = count ? (count - 1) * gapLength : 0  
  const countHeightSum = count * countHeight  
  
  console.log(`${gapHeightSum}${countHeightSum}`)  
  
  if ((countHeightSum + gapHeightSum) > minHeight) {  
    return countHeightSum + gapHeightSum  
  } else {  
    return minHeight  
  }  
}