diff --git a/db/migrate/20190927091948_change_user_p02389416_exercise.rb b/db/migrate/20190927091948_change_user_p02389416_exercise.rb
new file mode 100644
index 000000000..bea1e28b7
--- /dev/null
+++ b/db/migrate/20190927091948_change_user_p02389416_exercise.rb
@@ -0,0 +1,22 @@
+class ChangeUserP02389416Exercise < ActiveRecord::Migration[5.2]
+  def change
+    puts "====> start_to_create user exercise_answer"
+
+    #分别为第8，11，14，15，16,20,21,26
+    # 分数分别为：2分，2分，5分，2分，2分，2分，2分，2分  合计19分
+    question_ids = [37411,37414,37417,37418,37419,37423,37424,37429]
+    choice_ids = [117788,117797,117806,117809,117811,117816,117818,117828]
+    question_ids.each_with_index do |q, index|
+      ExerciseAnswer.create(user_id: 45442, exercise_question_id: q, exercise_choice_id: choice_ids[index])
+    end
+    ex_user = ExerciseUser.where(user_id: 45442, exercise_id: 2561)&.first
+    if ex_user.present?
+      obj_score = ex_user.objective_score.to_i + 19
+      total_score = ex_user.score.to_i + 19
+
+      ex_user.update_attributes(score: total_score, objective_score: obj_score)
+    end
+
+    puts "====> end_to_create user exercise_answer"
+  end
+end
diff --git a/public/react/config/webpack.config.dev.js b/public/react/config/webpack.config.dev.js
index 7990f9557..fe525154f 100644
--- a/public/react/config/webpack.config.dev.js
+++ b/public/react/config/webpack.config.dev.js
@@ -32,7 +32,7 @@ module.exports = {
   // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.s
 	// devtool: "cheap-module-eval-source-map",
   // 开启调试
-   //  devtool: "eval-source-map",  // 开启调试
+  devtool: "source-map",  // 开启调试
   // These are the "entry points" to our application.
   // This means they will be the "root" imports that are included in JS bundle.
   // The first two entry points enable "hot" CSS and auto-refreshes for JS.