直接上代碼

       <div class="form-group">
               <label class="col-sm-2 control-label">教師</label>
                          <div class="col-sm-10">
                           <select style="display:block;
                                    width:100%;
                                    height:34px;
                                    padding:6px 12px;
                                    font-size:14px;
                                    line-height:1.4;
                                    border-radius:4px;
                                    border:1px solid #ccc;
                                    color:#555; "
                                    ng-model="editCourse.TeacherName"
                                    ng-options="Teacher.UserName for Teacher in TeacherList" required>
                                <option value="">選擇教師</option>
                              </select>
                          </div>
           </div>

AngularJS

        //data為課程的編號ID
      $scope.Edit = function (data) {
            //通過課程ID獲取課程對象
            CourseService.getByCourseID(data).then(function (result) {
                $scope.editCourse = result.data;
                //默認值設定
                //先通過課程里面的教師ID獲取教師對象
                CourseService.GetTeacherByTeacherID(result.data.TeacherID).then(function (result) {
                  //$scope.TeacherList為所有教師的列表
                    for (i = 0; i < $scope.TeacherList.length; i++) {
                        //如果當前課程教師的ID與當前遍歷到的教師的ID相等的話就把當前遍歷到的這個教師的對象給到 ng-model="editCourse.TeacherName"
                        if (result.data.UserID == $scope.TeacherList[i].UserID) {
                            $scope.editCourse.TeacherName = $scope.TeacherList[i];
                        }
                    }
                });
                angular.element("#edit").modal({
                    show: true
                })
            })
        }

演示

演示.gif

謝謝O(∩_∩)O~