通过修改css 就可以实现
`<!-- -->
<template>
<div class="data">
<el-table :data="tableData1" style="width: 100%" row-key="id" border lazy :load="load" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
<el-table-column prop="date" label="日期" width="180">
</el-table-column>
<el-table-column prop="name" label="姓名" width="180">
</el-table-column>
<el-table-column prop="address" label="地址">
</el-table-column>
</el-table>
</div>
</template>
<script>
export default {
watch: {},
data() {
return {
tableData1: [
{
id: 1,
date: '2016-05-02',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},
{
id: 2,
date: '2016-05-04',
name: '王小虎',
address: '上海市普陀区金沙江路 1517 弄'
},
{
id: 3,
date: '2016-05-01',
name: '王小虎',
address: '上海市普陀区金沙江路 1519 弄',
hasChildren: true
},
{
id: 4,
date: '2016-05-03',
name: '王小虎',
address: '上海市普陀区金沙江路 1516 弄'
}
]
}
},
methods: {
load(tree, treeNode, resolve) {
setTimeout(() => {
resolve([
{
id: 31,
date: '2016-05-01',
name: '王小虎',
address: '上海市普陀区金沙江路 1519 弄'
},
{
id: 32,
date: '2016-05-01',
name: '王小虎',
address: '上海市普陀区金沙江路 1519 弄'
}
])
}, 1000)
}
},
mounted() {}
}
</script>
<style lang="less" scoped>
.data {
/deep/.el-table {
.el-table__expand-icon {
position: absolute;
left: 0;
right: 0;
bottom: 0;
top: 0;
background: red;
width: auto;
height: auto;
.el-icon {
&::before {
content: '';
}
}
}
.el-table__expand-icon--expanded {
transform: rotate(0deg);
background: yellow;
}
}
}
</style>
`
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