需求：動態(tài)的修改合計(jì)欄的某項(xiàng)值的樣式
在計(jì)算合計(jì)的函數(shù)中g(shù)etSummaries獲取要修改的哪一項(xiàng)的index
const littleIndex = columns.findIndex(item => item.label === '小計(jì)')
獲取DOM并修改
if (document.querySelectorAll('.el-table__footer-wrapper tr>td').length > 0) {
const tables = document.querySelectorAll(
'.el-table__footer-wrapper tr>td'
)
for (let i = 0; i < tables.length; i++) {
tables[i].style.color = '#FFF'
}
tables[littleIndex].style.color = '#6CC8EC'
}
