From a54c642f4b2f7743b7fd49d0eb4decfd126ffd63 Mon Sep 17 00:00:00 2001
From: 670788339 <670788339@qq.com>
Date: Sun, 2 Nov 2025 10:22:23 +0800
Subject: [PATCH] =?UTF-8?q?=E6=A0=87=E7=AD=BE=E8=B0=83=E6=95=B4?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/components/Course/courseTag.vue | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/components/Course/courseTag.vue b/src/components/Course/courseTag.vue
index 2a126745..2d15ac5c 100644
--- a/src/components/Course/courseTag.vue
+++ b/src/components/Course/courseTag.vue
@@ -176,11 +176,22 @@ export default {
     //按回车键，创建新标签
     handleEnterKey(event) {
       const inputVal = event.target.value?.trim()
+      if (!inputVal) return;
+      // 检查是否与已选择的标签重复
+      const isDuplicate = this.selectedTags.some(tag => tag.tagName === inputVal);
+      if (isDuplicate) {
+        this.$message.warning('该标签已存在，无需重复创建');
+        event.target.value = '';
+        return;
+      }
       if (!this.searchResults.length && inputVal && this.selectedTags.length < this.maxTags) {
         this.createNewTag(event.target.value.trim())
         event.target.value = ''
       } else if (this.selectedTags.length >= this.maxTags) {
         this.$message.warning('最多只能添加5个标签')
+        event.target.value = ''
+      } else {
+        event.target.value = ''
       }
     },
 
@@ -213,6 +224,18 @@ export default {
         this.$message.error('标签不能超过8个字')
         return;
       }
+      // 首先检查是否与已选择的标签重复
+      const isDuplicate = this.selectedTags.some(tag => tag.tagName === tagName);
+      if (isDuplicate) {
+        this.$message.warning('该标签已存在，无需重复创建');
+        return;
+      }
+      // 标签格式验证：仅支持中文、英文、数字、下划线、中横线
+      const tagPattern = /^[\u4e00-\u9fa5a-zA-Z0-9_-]+$/;
+      if (!tagPattern.test(tagName)) {
+        this.$message.error('标签名称仅支持中文、英文、数字、下划线(_)和中横线(-)，不支持空格、点和特殊字符');
+        return;
+      }
       // 添加标签数量限制检查
       if (this.selectedTags.length >= this.maxTags) {
         this.$message.warning('最多只能添加5个标签')