diff --git a/app/forms/users/apply_authentication_form.rb b/app/forms/users/apply_authentication_form.rb
index e0e7931b1..c7c171e31 100644
--- a/app/forms/users/apply_authentication_form.rb
+++ b/app/forms/users/apply_authentication_form.rb
@@ -3,7 +3,7 @@ class Users::ApplyAuthenticationForm
 
   attr_accessor :name, :show_realname, :id_number, :gender, :upload_image, :attachment_ids
 
-  validates :name, presence: true
+  validates :name, presence: true, length: { minimum: 2, maximum: 10 }, format: { with: CustomRegexp::LASTNAME, message: "2-10位中英文、数字" }
   validate :validate_ID_number
   validate :validate_attachment_ids
 
diff --git a/app/forms/users/update_account_form.rb b/app/forms/users/update_account_form.rb
index 16c3c8013..0eae399d8 100644
--- a/app/forms/users/update_account_form.rb
+++ b/app/forms/users/update_account_form.rb
@@ -5,8 +5,8 @@ class Users::UpdateAccountForm
   attr_accessor :nickname, :name, :show_realname, :gender, :location, :location_city,
                 :identity, :student_id, :technical_title, :school_id, :department_id
 
-  validates :nickname, presence: true, length: { maximum: 20 }
-  validates :name, presence: true, length: { maximum: 10 }
+  validates :nickname, presence: true, length: { minimum: 2, maximum: 20 }, format: { with: CustomRegexp::NICKNAME, message: "2-20位中英文、数字及下划线" }
+  validates :name, presence: true, length: { minimum: 2, maximum: 10 }, format: { with: CustomRegexp::LASTNAME, message: "2-10位中英文、数字" }
   validates :gender, presence: true, numericality: { only_integer: true }, inclusion: { in: [0, 1] }
   validates :location, presence: true
   validates :location_city, presence: true
diff --git a/app/libs/custom_regexp.rb b/app/libs/custom_regexp.rb
index d7afc61ed..2a2a99384 100644
--- a/app/libs/custom_regexp.rb
+++ b/app/libs/custom_regexp.rb
@@ -1,4 +1,6 @@
 module CustomRegexp
   PHONE = /1\d{10}/
-  EMAIL = /^[a-zA-Z0-9]+([._\\]*[a-zA-Z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/
+  EMAIL = /\A[a-zA-Z0-9]+([._\\]*[a-zA-Z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+\z/
+  LASTNAME = /\A[a-zA-Z0-9\u4e00-\u9fa5]+\z/
+  NICKNAME = /\A[\u4e00-\u9fa5_a-zA-Z0-9]+\z/
 end
\ No newline at end of file
diff --git a/db/migrate/20191204030230_migrate_exercise_single_question_score.rb b/db/migrate/20191204030230_migrate_exercise_single_question_score.rb
new file mode 100644
index 000000000..c71fea157
--- /dev/null
+++ b/db/migrate/20191204030230_migrate_exercise_single_question_score.rb
@@ -0,0 +1,27 @@
+class MigrateExerciseSingleQuestionScore < ActiveRecord::Migration[5.2]
+  def change
+    # 删除判断、单选题中生成多条记录，但exercise_choice_id不同的数据
+    sql = %Q(delete from exercise_answers where (exercise_question_id, user_id) in
+            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1) a)
+            and id not in (select * from (select min(exercise_answers.id) from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1 order by exercise_answers.id) b))
+    ActiveRecord::Base.connection.execute sql
+
+    # 更新成绩
+    exercise_answers = ExerciseAnswer.joins(:exercise_question).where(score: -1, exercise_questions: {question_type: [0, 2]})
+    exercise_answers.includes(:exercise_choice, exercise_question: :exercise_standard_answers).find_each do |answer|
+
+      question = answer.exercise_question
+      exercise_user = ExerciseUser.find_by(exercise_id: question.exercise_id, user_id: answer.user_id)
+
+      if exercise_user && exercise_user.commit_status == 1
+        user_choice_position = answer.exercise_choice&.choice_position
+        if user_choice_position && (user_choice_position.to_i == question.exercise_standard_answers.take&.exercise_choice_id.to_i)
+          answer.update!(score: question.question_score)
+          score = exercise_user.score + question.question_score
+          objective_score = exercise_user.objective_score + question.question_score
+          exercise_user.update!(score: score, objective_score: objective_score)
+        end
+      end
+    end
+  end
+end