no message

@@ -88,7 +88,7 @@
                 <el-checkbox label="2D" value="2D" />
                 <el-select
                   v-model="showForm.form.twoDimensionalType"
-                  placeholder="请选择上传内容"
+                  placeholder="请选择上传方式"
                   size="small"
                   style="width: 240px;margin-left: 16px;"
                 >
@@ -104,7 +104,7 @@
                 <el-checkbox label="3D" value="3D" />
                 <el-select
                   v-model="showForm.form.threeDimensionalType"
-                  placeholder="请选择上传内容"
+                  placeholder="请选择上传方式"
                   size="small"
                   style="width: 240px;margin-left: 16px;"
                 >
@@ -123,7 +123,7 @@
               <imageUpload v-model="showForm.form.twoDimensionalOssId" :limit='10' :fileType='["png", "jpg", "jpeg", "ico"]'/>
             </template>
             <template v-else>
-              <el-input v-model="showForm.form.twoDimensionalUrl" placeholder="请输入参数键名" />
+              <el-input v-model="showForm.form.twoDimensionalUrl" placeholder="请输入链接URL" />
             </template>
           </el-form-item>
           <el-form-item v-if="determineStatus('3D')" :label="$t('course.dialogThreeD')" label-width="80">
@@ -131,13 +131,13 @@
               <imageUpload v-model="showForm.form.threeDimensionalOssId" :limit='10' :fileType='["png", "jpg", "jpeg", "ico"]'/>
             </template>
             <template v-else>
-              <el-input v-model="showForm.form.threeDimensionalUrl" placeholder="请输入参数键名" />
+              <el-input v-model="showForm.form.threeDimensionalUrl" placeholder="请输入链接URL" />
             </template>
           </el-form-item>
-          <el-form-item :label="$t('course.dialogCase')" label-width="80">
+          <el-form-item :label="$t('course.dialogCase')" prop="caseOssId" label-width="80">
             <fileUpload v-model="showForm.form.caseOssId" :limit="1" :fileType='["mp4", "avi", "mov", "flv"]'/>
           </el-form-item>
-          <el-form-item :label="$t('course.dialogTeaching')" prop="teachingOssId" label-width="80">
+          <el-form-item :label="$t('course.dialogTeaching')" label-width="80">
             <fileUpload v-model="showForm.form.teachingOssId" :limit="1" :fileType='["pdf"]'/>
           </el-form-item>
           <el-form-item :label="$t('course.dialogPpt')" label-width="80">
@@ -199,7 +199,7 @@ const data = reactive({
     name: [{ required: true, message: "课程名称不能为空", trigger: "blur" }],
     buildingBlockId: [{ required: true, message: "系列不能为空", trigger: "blur" }],
     type: [{ required: true, message: "搭建类型不能为空", trigger: "blur" }],
-    teachingOssId: [{ required: true, message: "教案不能为空", trigger: "blur" }],
+    caseOssId: [{ required: true, message: "案例不能为空", trigger: "blur" }],
   }
 })