新增价格区间placeholder 、隐藏钱币分类列表返回按钮

src/views/mall/dealRecord.vue

 <template>
   <div class="app-container">
-    <div class="page__header flex f-ai-c f-jc-sb">
-      <el-button type="primary" size="mini" class="mr10" @click="onBack">返回</el-button>
+    <div class="page__header flex f-ai-c f-jc-e">
+      <!-- <el-button type="primary" size="mini" class="mr10" @click="onBack">返回</el-button> -->
       <el-button type="danger" size="mini" class="mr10" @click="onAdd">添加成交记录</el-button>
     </div>
     <el-form ref="searchForm" :inline="true" :model="searchForm" class="demo-form-inline">
       <el-form-item label="价格范围" prop="startPrice">
-        <el-input-number v-model="searchForm.startPrice" :step="1" placeholder="最小价格" controls-position="right" size="small" />
+        <el-input-number v-model="searchForm.startPrice" :min="1" :step="1" placeholder="最小价格" controls-position="right" size="small" />
       </el-form-item>
       <el-form-item prop="endPrice">
         ~
-        <el-input-number v-model="searchForm.endPrice" :step="1" placeholder="最大价格" controls-position="right" size="small" />
+        <el-input-number v-model="searchForm.endPrice" :min="1" :step="1" placeholder="最大价格" controls-position="right" size="small" />
       </el-form-item>
       <el-form-item label="交易日期" prop="dateRange">
         <el-date-picker