下拉框添加清除按钮

src/views/trials/trials-panel/attachments/attachment-management/index.vue

@@ -5,7 +5,7 @@
       <el-form :inline="true">
         <!-- 文件类型 -->
         <el-form-item :label="$t('trials:signRecords:table:fileType')">
-          <el-select v-model="searchData.FileTypeId" style="width: 150px">
+          <el-select v-model="searchData.FileTypeId" clearable style="width: 150px">
             <el-option
               v-for="item of typeOptions"
               :key="item.FileTypeId"

src/views/trials/trials-panel/attachments/self-attachment/index.vue

@@ -7,6 +7,7 @@
         <el-form-item :label="$t('trials:self-attachment:table:fileType')">
           <el-select
             v-model="searchData.FileTypeId"
+            clearable
             style="width:150px;"
           >
             <el-option

src/views/trials/trials-panel/setting/attachment/index.vue

@@ -7,6 +7,7 @@
         <el-form-item :label="$t('trials:attachment:table:fileType')">
           <el-select
             v-model="searchData.FileTypeId"
+            clearable
             style="width:150px;"
           >
             <el-option
@@ -40,6 +41,7 @@
         <el-form-item :label="$t('trials:attachment:table:userType')">
           <el-select
             v-model="searchData.UserTypeId"
+            clearable
             style="width:100%;"
           >
             <el-option