修改敏感数据上传文件bug，以及字段回显问题

src/components/page/createData.vue

@@ -79,6 +79,7 @@
             v-model="form.fileId"
             drag
             :action="returnActionUrl()"
+            :limit="1"
             :on-success="uploadSuccess"
             :before-upload="beforeUpload"
             class="upload-demo"
@@ -155,11 +156,12 @@
     },
     watch: {
       'form.dataType'(val){
+        this.form.dataRole = val;
         if(val==2){
-          this.form.dataRole = 2;
+          // this.form.dataRole = 2;
           this.disableAdmintype = true;
         }else if(val==1){
-          this.form.dataRole = '';
+          // this.form.dataRole = '';
           this.disableAdmintype = false;
         }
       },