在el-table 加入
:header-cell-style="{background:'#00a65b',color:'#fff'}
eg:
<el-table v-loading="options.loading" :data="list" :max-height="options.maxHeight" :stripe="options.stripe" ref="mutipleTable"
@selection-change="handleSelectionChange" header-cell-class-name="table-header" :border="options.border"
:header-cell-style="{background:'#00a65b',color:'#fff'}"
>