bug fix

src/pages/nft/add.vue

@@ -339,7 +339,7 @@ watchEffect(() => {
     } else {
         projectNo.value = ''
     }
-    showNoStr.value = projectNo.value != '' && Number(projectNo.value) > 0;
+    showNoStr.value = projectNo.value != '' && Number(projectSize.value) > 0;
 
     // 是否可以创建
     let ifUpload = tempUrl.value != '' || false;