bug修改

src/pages/system/cardAndCouponManager/cardManager/edit.vue

           <span>目标课程：<em>*</em></span>
           <div class="flex-item">
             <div>
-              <el-select v-model="cardInfo.Targets[0].TargetId" placeholder="请选择" :disabled="isEdit" @change="courseChange">
+              <el-select v-model="cardInfo.Targets[0].TargetId" placeholder="请选择" v-if="!isEdit" @change="courseChange">
                 <el-option
                   v-for="item in courseList"
                   :key="item.CourseId"
                   :disabled="item.Status !== 1">
                 </el-option>
               </el-select>
+              <span v-else>{{cardInfo.Targets[0].TargetName}}</span>
             </div>
           </div>
         </li>