专业代码改为下拉框，选择之后带出专业信息

frontend/src/views/subjectMajor/discipline/index.vue

@@ -123,7 +123,15 @@
         <el-row :gutter="16">
           <el-col :span="12">
             <el-form-item label="专业代码" prop="zydm">
-              <el-input v-model="form.zydm" placeholder="请输入专业代码" />
+              <el-select v-model="form.zydm" :loading="majorOptionsLoading" placeholder="请选择专业代码"
+                clearable filterable class="w-full" @change="handleMajorCodeChange">
+                <el-option
+                  v-for="item in majorOptions"
+                  :key="item.zydh"
+                  :label="formatMajorLabel(item)"
+                  :value="item.zydm"
+                />
+              </el-select>
             </el-form-item>
           </el-col>
           <el-col :span="12">
@@ -265,11 +273,13 @@ import {
   updateDiscipline,
   disableDiscipline
 } from '@/api/subjectMajor/discipline'
+import { listMajor } from '@/api/subjectMajor/major'
 import { getDicts } from '@/api/system/dict/data'
 import { optionselect } from '@/api/system/dict/type'
 
 const TRAINING_TYPE_DICT_CODE = 'train_type'
 const TRAINING_LEVEL_DICT_CODE = 'train_level'
+const MAJOR_OPTION_PAGE_SIZE = 10000
 
 export default {
   name: 'DisciplineIndex',
@@ -300,7 +310,7 @@ export default {
       form: this.createEmptyForm(),
       formRules: {
         gfmc: [{ required: true, message: '请输入规范名称', trigger: 'blur' }],
-        zydm: [{ required: true, message: '请输入专业代码', trigger: 'blur' }],
+        zydm: [{ required: true, message: '请选择专业代码', trigger: 'change' }],
         zymc: [{ required: true, message: '请输入专业名称', trigger: 'blur' }],
         zyfx: [{ required: true, message: '请输入专业方向', trigger: 'blur' }],
         xnz: [{ required: true, message: '请输入学年制', trigger: 'blur' }],
@@ -316,6 +326,9 @@ export default {
       trainingTypeOptions: [],
       trainingLevelOptions: [],
       studentCategoryOptions: [],
+      // 专业代码下拉选项（来源：专业管理-专业表，按专业代码去重）
+      majorOptions: [],
+      majorOptionsLoading: false,
 
       // ==================== 详情 ====================
       detailDialogVisible: false,
@@ -325,6 +338,7 @@ export default {
   },
   mounted() {
     this.loadDisciplineDictionaries()
+    this.loadMajorOptions()
     this.fetchList()
   },
   methods: {
@@ -356,6 +370,74 @@ export default {
       }
     },
 
+    /** 复用专业分页接口加载启用中的专业，作为专业代码下拉的全量选项（按专业代码去重）。 */
+    async loadMajorOptions() {
+      this.majorOptionsLoading = true
+      try {
+        const response = await listMajor({
+          pageNum: 1,
+          pageSize: MAJOR_OPTION_PAGE_SIZE,
+          ty: false
+        })
+        const data = response.data || {}
+        const records = Array.isArray(data.records) ? data.records : []
+        const seen = new Set()
+        this.majorOptions = records.filter(item => {
+          if (!item.zydm || seen.has(item.zydm)) {
+            return false
+          }
+          seen.add(item.zydm)
+          return true
+        })
+      } catch (error) {
+        this.majorOptions = []
+      } finally {
+        this.majorOptionsLoading = false
+      }
+    },
+
+    formatMajorLabel(item) {
+      const base = [item.zydm, item.zymc].filter(Boolean).join(' ')
+      return item.zyfx ? `${base}（${item.zyfx}）` : (base || item.zydh)
+    },
+
+    /** 宽松布尔归一：兼容后端 Boolean、数字 0/1、字符串 'true'/'false'/'1'/'0'/'是'/'否'；无效值返回 null */
+    normBool(val) {
+      if (val === null || val === undefined || val === '') return null
+      if (typeof val === 'boolean') return val
+      if (typeof val === 'number') return val !== 0
+      const s = String(val).trim()
+      if (['是', 'true', '1', 'Y', 'y'].indexOf(s) >= 0) return true
+      if (['否', 'false', '0', 'N', 'n'].indexOf(s) >= 0) return false
+      return null
+    },
+
+    /** 选择专业代码后，从专业表带出可对应的专业信息字段 */
+    handleMajorCodeChange(zydm) {
+      if (!zydm) {
+        return
+      }
+      const major = this.majorOptions.find(item => item.zydm === zydm)
+      if (!major) {
+        return
+      }
+      const f = this.form
+      f.zymc = major.zymc || ''
+      f.zyfx = major.zyfx || ''
+      f.xnz = major.xnz || ''
+      f.xqs = major.xqs !== null && major.xqs !== undefined ? major.xqs : undefined
+      f.pxcc = major.pxcc || ''
+      f.pxlx = major.pxlx || ''
+      f.pxlx2 = major.pxlx2 || ''
+      f.jxgljgbh = major.jxgljgbh || ''
+      f.xylb = major.xylb || ''
+      f.zdyfl = major.zdyfl || ''
+      f.gfmc = major.gfmc || ''
+      const zgzy = this.normBool(major.zgzy)
+      f.zgzy = zgzy === null ? '' : (zgzy ? '是' : '否')
+      f.bz = major.zybz || ''
+    },
+
     /** 序号：按当前页数据索引生成跨页连续的序号 */
     fmtXh(index) {
       return (this.pageNum - 1) * this.pageSize + index + 1