搜索框的显示与隐藏（展开与收起）

效果如下

直接上代码

v-if="showAll || 0 < 3" 的意思是：如果 showAll 为 true，或者 0 小于 3，这个表单项就会显示。

	<el-form :inline="true" class="demo-form-inline" size="default" label-width="100px">
					<el-form-item label="平台类型：" v-if="showAll || 0 < 3">
						<el-select v-model="pageForm.platform_id" placeholder="请选择平台类型">
							<el-option v-for="item in platformData" :key="item.id" :label="item.name" :value="item.id" />
						</el-select>
					</el-form-item>
					<el-form-item label="席位ID：" v-if="showAll || 1 < 3">
						<el-input v-model="pageForm.seat_id" placeholder="请输入席位ID" clearable />
					</el-form-item>
					<el-form-item label="进粉时间：" v-if="showAll || 2 < 3">
						<el-date-picker
							v-model="dateRange"
							size="default"
							type="daterange"
							range-separator="至"
							start-placeholder="开始日期"
							end-placeholder="结束日期"
							:format="'YYYY-MM-DD'"
							:value-format="'YYYY-MM-DD'"
							placeholder="选择日期范围"
						/>
					</el-form-item>
					<el-form-item label="状态：" v-if="showAll">
						<el-select v-model="delete_status" :multiple="true" clearable placeholder="请选择状态">
							<el-option label="待清除" :value="1" />
							<el-option label="已清除" :value="2" />
						</el-select>
					</el-form-item>
					<el-form-item label="所属平台账号：" v-if="showAll">
						<el-input v-model="pageForm.account_user_id" placeholder="请输入所属账号UserId" clearable />
					</el-form-item>
					<div style="margin-left: 100px">
						<el-button style="background-color: #f4f4f5" size="default" @click="getRefresh">重置</el-button>
						<el-button size="default" type="primary" @click="getList">查询</el-button>
						<span style="color: #999999; cursor: pointer; margin-left: 10px" @click="showAll = !showAll">
							{{ showAll ? '收起' : '展开' }}<el-icon><component :is="showAll ? 'ArrowUp' : 'ArrowDown'" /></el-icon>
						</span>
					</div>
				</el-form>

样式我调了下输入框的长度

.demo-form-inline .el-input {
	--el-input-width: 244px;
}

.demo-form-inline .el-select {
	--el-select-width: 244px;
}