<el-dropdown trigger="click" @command="handleCommand">
<span class="el-dropdown-link btn send time-send small-hand" id="custom-sebd-btn" :class="{active:customActive}">
{{custom}}
</span>
<el-dropdown-menu slot="dropdown">
<el-dropdown-item :command="commandOne">生日当天发送</el-dropdown-item>
<el-dropdown-item :command="commandTwo">生日前一天发送</el-dropdown-item>
<el-dropdown-item :command="commandThr">生日前一星期发送</el-dropdown-item>
</el-dropdown-menu>
</el-dropdown>
handleCommand(command){
this.custom = command.desc;
},