修改

src/main/webapp/webpage/modules/sg/managementcenter/moduleacquisition/moduleBlockForm.jsp

@@ -20,7 +20,7 @@
             if (null!=mdImg&&mdImg!=""){
                 var valueArray = mdImg.split(",");
                 if (valueArray.length>1){
-                    alert("只允许上传一张");
+                    jp.error("只允许上传一张");
                     return false;
 				}
 			}

src/main/webapp/webpage/modules/sg/managementcenter/moduleacquisition/moduleBlockNewForm.jsp

@@ -20,7 +20,7 @@
             if (null!=mdImg&&mdImg!=""){
                 var valueArray = mdImg.split(",");
                 if (valueArray.length>1){
-                    alert("只允许上传一张");
+                    jp.error("只允许上传一张");
                     return false;
                 }
             }