撤銷操作： https://railstutorial-china.org/book/chapter3.html#aside-undoing-things
HTTP 超文本傳輸協議 https://railstutorial-china.org/book/chapter3.html#aside-get-etc
測試 https://railstutorial-china.org/book/chapter3.html#aside-when-to-test
視圖中使用 ruby
# 嵌入式 Ruby 代碼# 設置參數<% 定義輔助方法 app/helpers/application_helper.rbmodule ApplicationHelper # 根據所在的頁面返回完整的標題 def full_title(page_title = '') base_title = "Ruby on Rails Tutorial Sample App" if page_title.empty? base_title else page_title + " | " + base_title end endend新聞熱點
疑難解答
