1.未上传图片的显示 "无" 字

2.默认图片可修改开关

src/components/DesignForm/assembly/index.ts

@@ -549,6 +549,7 @@ export default [
 					modelValue: '',
 					uploadFlag: false,
 					useDefaultImg: false,
+					defaultAllowsChange: '',
 					onSiteShot: '',
 					watermark: '',
 					imgId: '',

src/components/DesignForm/formControlPropertiNew.vue

@@ -4385,6 +4385,16 @@ const aiAgentList = ref([
                   >
                   
                 </el-upload>
+                <div v-if="controlData.control.uploadFlag">
+                  <div style="position: relative; left: -60px;top:8px">
+                          默认图片可更改
+
+                            <el-radio-group v-model="controlData.control.defaultAllowsChange" style="position: relative; left: 8px">
+                              <el-radio value="">是</el-radio>
+                              <el-radio value="0">否</el-radio>
+                            </el-radio-group>
+                          </div>
+                </div>
               </el-row>
               <el-row v-else-if="item.type === 'lowcodeImage_currentShot'">
                   <el-radio-group v-model="controlData.control.onSiteShot">

src/components/DesignForm/public/expand/lowcodeImage.vue

@@ -313,9 +313,16 @@ function selectFile(){
         class="avatar"
         :style="getFormItemInputStyle(configStyle, 2)"
       />
+
+      <img
+        v-if="props.data.control.useDefaultImg&&props.type!=4&&props.type!=5&&props.data.control.defaultAllowsChange=='0'"
+        :src="props.modelValue"
+        class="avatar"
+        :style="getFormItemInputStyle(configStyle, 2)"
+      />
   
   <el-upload
-    v-if="props.type!=4&&props.type!=5"
+    v-if="props.type!=4&&props.type!=5&&props.data.control.defaultAllowsChange==''"
     v-bind="$props"
     class="upload-demo"
     :action="uploadUrl"
@@ -398,8 +405,9 @@ function selectFile(){
   </el-upload>
 
 <!-- 详情页略缩图列表 -->
-<div v-if ="(!props.data.control.useDefaultImg)&&((props.type==2&&props.data.control.onSiteShot=='1')||props.type==4)" v-for="url in valueArr"  class="demo-image__preview">
+<div v-if ="(!props.data.control.useDefaultImg)&&((props.type==2&&props.data.control.onSiteShot=='1')||props.type==4)" v-for="url in valueArr"  class="demo-image__preview" style="min-height: 42px;display: flex; align-items: center; justify-content: center;">
     <el-image
+      v-if="url!='/src/assets/404_images/imgNotFound.png'"
       style="width: 100px; height: 100px;margin: 4px;border: #DCDFE6 1px solid; border-radius: 8px;"
       :src="url"
       :zoom-rate="1.2"
@@ -410,6 +418,7 @@ function selectFile(){
       :initial-index="4"
       fit="cover"
     />
+    <span v-else style="display: inline-block;">无</span>
   </div>