rails4.1 开发模式下为什么在控制台所有的日志都显示双列呢？

Question

D, [2016-04-13T14:40:00.609856 #3494] DEBUG -- :    (0.1ms)  begin transaction
D, [2016-04-13T14:40:00.609955 #3494] DEBUG -- :    (0.1ms)  begin transaction
D, [2016-04-13T14:40:00.613431 #3494] DEBUG -- :   User Exists (0.2ms)  SELECT  1 AS one FROM "users"  WHERE "users"."email" = '12312123123' LIMIT 1
D, [2016-04-13T14:40:00.613537 #3494] DEBUG -- :   User Exists (0.2ms)  SELECT  1 AS one FROM "users"  WHERE "users"."email" = '12312123123' LIMIT 1
D, [2016-04-13T14:40:00.640318 #3494] DEBUG -- :   SQL (0.4ms)  INSERT INTO "users" ("created_at", "email", "encrypted_password", "updated_at") VALUES (?, ?, ?, ?)  [["created_at", "2016-04-13 06:40:00.613720"], ["email", "12312123123"], ["encrypted_password", "123123"], ["updated_at", "2016-04-13 06:40:00.613720"]]
D, [2016-04-13T14:40:00.640442 #3494] DEBUG -- :   SQL (0.4ms)  INSERT INTO "users" ("created_at", "email", "encrypted_password", "updated_at") VALUES (?, ?, ?, ?)  [["created_at", "2016-04-13 06:40:00.613720"], ["email", "12312123123"], ["encrypted_password", "123123"], ["updated_at", "2016-04-13 06:40:00.613720"]]
D, [2016-04-13T14:40:00.826313 #3494] DEBUG -- :    (185.4ms)  commit transaction
D, [2016-04-13T14:40:00.826405 #3494] DEBUG -- :    (185.4ms)  commit transaction
恭喜，程序执行正常，未发生任何异常或错误。
请注意，程序即将退出。
I, [2016-04-13T14:40:00.826637 #3494]  INFO -- : 注册方法的返回值["12312123123", "123123", "离线"]
I, [2016-04-13T14:40:00.826680 #3494]  INFO -- : 注册方法的返回值["12312123123", "123123", "离线"]
I, [2016-04-13T14:40:00.826771 #3494]  INFO -- : Admin::RegisterController#create 注册成功！
I, [2016-04-13T14:40:00.826806 #3494]  INFO -- : Admin::RegisterController#create 注册成功！
I, [2016-04-13T14:40:00.827509 #3494]  INFO -- : Redirected to http://0.0.0.0:3000/admin/register
I, [2016-04-13T14:40:00.827576 #3494]  INFO -- : Redirected to http://0.0.0.0:3000/admin/register
I, [2016-04-13T14:40:00.827853 #3494]  INFO -- : Completed 302 Found in 219ms (ActiveRecord: 186.1ms)
I, [2016-04-13T14:40:00.827941 #3494]  INFO -- : Completed 302 Found in 219ms (ActiveRecord: 186.1ms)
D, [2016-04-13T14:40:00.832794 #3494] DEBUG -- : 
D, [2016-04-13T14:40:00.832853 #3494] DEBUG -- : 
D, [2016-04-13T14:40:00.832897 #3494] DEBUG -- : 
D, [2016-04-13T14:40:00.832934 #3494] DEBUG -- : 
I, [2016-04-13T14:40:00.833034 #3494]  INFO -- : Started GET "/admin/register" for 127.0.0.1 at 2016-04-13 14:40:00 +0800
I, [2016-04-13T14:40:00.833066 #3494]  INFO -- : Started GET "/admin/register" for 127.0.0.1 at 2016-04-13 14:40:00 +0800
I, [2016-04-13T14:40:00.834831 #3494]  INFO -- : Processing by Admin::RegisterController#show as HTML
I, [2016-04-13T14:40:00.834886 #3494]  INFO -- : Processing by Admin::RegisterController#show as HTML
I, [2016-04-13T14:40:00.836547 #3494]  INFO -- :   Rendered admin/register/show.html.erb within layouts/application (0.0ms)
I, [2016-04-13T14:40:00.836593 #3494]  INFO -- :   Rendered admin/register/show.html.erb within layouts/application (0.0ms)
I, [2016-04-13T14:40:00.950169 #3494]  INFO -- : Completed 200 OK in 115ms (Views: 114.7ms | ActiveRecord: 0.0ms)
I, [2016-04-13T14:40:00.950242 #3494]  INFO -- : Completed 200 OK in 115ms (Views: 114.7ms | ActiveRecord: 0.0ms)
D, [2016-04-13T14:40:01.015440 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.021302 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.021402 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.021443 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.028709 #3494]  INFO -- : Started GET "/assets/admin/login_session.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.028792 #3494]  INFO -- : Started GET "/assets/admin/login_session.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.035617 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.036020 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.036700 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.036881 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.037218 #3494]  INFO -- : Started GET "/assets/bootstrap_and_overrides.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.037290 #3494]  INFO -- : Started GET "/assets/bootstrap_and_overrides.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.039909 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.041696 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.041872 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.041927 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.042101 #3494]  INFO -- : Started GET "/assets/posts.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.042404 #3494]  INFO -- : Started GET "/assets/posts.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.044271 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.044416 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.044466 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.044508 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.044691 #3494]  INFO -- : Started GET "/assets/scaffolds.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.044737 #3494]  INFO -- : Started GET "/assets/scaffolds.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.046715 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.047172 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.047424 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.047519 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.047969 #3494]  INFO -- : Started GET "/assets/admin/register.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.048026 #3494]  INFO -- : Started GET "/assets/admin/register.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.050567 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.050764 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.051097 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.051167 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.054233 #3494]  INFO -- : Started GET "/assets/admin/log_out.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.057832 #3494]  INFO -- : Started GET "/assets/admin/log_out.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.064639 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.064864 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.064921 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.064966 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.065143 #3494]  INFO -- : Started GET "/assets/style.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.065192 #3494]  INFO -- : Started GET "/assets/style.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.068474 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.068580 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.068629 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.068673 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.068930 #3494]  INFO -- : Started GET "/assets/application.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.068984 #3494]  INFO -- : Started GET "/assets/application.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.071873 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.071957 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.072009 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.072051 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.072232 #3494]  INFO -- : Started GET "/assets/welcome.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.072278 #3494]  INFO -- : Started GET "/assets/welcome.css?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.076079 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.076177 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.076232 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.081164 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.083933 #3494]  INFO -- : Started GET "/assets/jquery.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.083981 #3494]  INFO -- : Started GET "/assets/jquery.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.085751 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.085927 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.085984 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.086027 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.086211 #3494]  INFO -- : Started GET "/assets/jquery_ujs.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.086257 #3494]  INFO -- : Started GET "/assets/jquery_ujs.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.091283 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.091522 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.091772 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.091884 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.092155 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/transition.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.092261 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/transition.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.098301 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.100339 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.100584 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.100662 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.100842 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/modal.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.100917 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/modal.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.105913 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.106076 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.106171 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.106260 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.106500 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/alert.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.106599 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/alert.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.109156 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.109366 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.109422 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.109471 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.111641 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/dropdown.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.111705 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/dropdown.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.113917 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.115927 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.116031 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.116107 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.116295 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/scrollspy.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.117720 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/scrollspy.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.120582 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.120767 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.120873 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.120966 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.121216 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/tab.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.121320 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/tab.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.129800 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.129880 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.129922 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.131419 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.131554 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/tooltip.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.131606 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/tooltip.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.133439 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.133619 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.133705 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.133746 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.133901 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/popover.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.133944 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/popover.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.136452 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.136524 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.138778 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.138849 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.140422 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/button.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.140499 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/button.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.142444 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.142599 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.142652 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.142693 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.142858 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/collapse.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.142903 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/collapse.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.144861 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.146987 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.147049 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.148444 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.148619 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/carousel.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.148654 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/carousel.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.150395 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.150552 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.150601 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.150643 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.150807 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/affix.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.150856 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap/affix.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.157956 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.158016 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.158072 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.158112 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.158251 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.158290 #3494]  INFO -- : Started GET "/assets/twitter/bootstrap.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.160151 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.160219 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.160282 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.160327 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.160441 #3494]  INFO -- : Started GET "/assets/turbolinks.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.160468 #3494]  INFO -- : Started GET "/assets/turbolinks.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.163302 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.163488 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.164975 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.165019 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.167372 #3494]  INFO -- : Started GET "/assets/admin/log_out.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.170578 #3494]  INFO -- : Started GET "/assets/admin/log_out.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.172917 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.173083 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.173138 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.173183 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.173375 #3494]  INFO -- : Started GET "/assets/admin/login_session.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.173428 #3494]  INFO -- : Started GET "/assets/admin/login_session.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.179715 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.179811 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.179858 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.179907 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.180119 #3494]  INFO -- : Started GET "/assets/admin/register.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.180170 #3494]  INFO -- : Started GET "/assets/admin/register.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.183229 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.183394 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.183438 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.183478 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.186960 #3494]  INFO -- : Started GET "/assets/posts.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.187036 #3494]  INFO -- : Started GET "/assets/posts.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.188810 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.189002 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.189058 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.189100 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.189264 #3494]  INFO -- : Started GET "/assets/bootstrap.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.189310 #3494]  INFO -- : Started GET "/assets/bootstrap.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.191702 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.192578 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.192637 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.192676 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.192839 #3494]  INFO -- : Started GET "/assets/welcome.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.192883 #3494]  INFO -- : Started GET "/assets/welcome.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
D, [2016-04-13T14:40:01.194565 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.194629 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.194779 #3494] DEBUG -- : 
D, [2016-04-13T14:40:01.194872 #3494] DEBUG -- : 
I, [2016-04-13T14:40:01.195095 #3494]  INFO -- : Started GET "/assets/application.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800
I, [2016-04-13T14:40:01.195215 #3494]  INFO -- : Started GET "/assets/application.js?body=1" for 127.0.0.1 at 2016-04-13 14:40:01 +0800

如题，上面是我的控制台显示的信息，全部都是双列，是日志的问题还是程序的问题？

Answer 1

没遇上这种问题,应该是你程序中有指定,你可以看一下你的环境配置文件