jiyuhang110 (冀宇航)

在 erb 中使用 hash，在生成的 �HTML 中，多了这个 hash 本身的输出

jiyuhang110 — Mon, 07 Mar 2016 06:27:07 +0800

我已存在的 rails 书籍中，找不到这个问题的原因。想 google 之，却无法用语言描述这个问题。我曾尝试谷歌 "rails erb hash" 或者 "rails erb duplicate hash"。但是找不到这个问题的解答。

view 代码

<%= @list.each do |one|%>
    <p>
    <div class="word"><%= one.word%></div>
    <div class="num"><%= one.num%></div>
    <div class="sentence"><%= one.sentence%></div>
    <p class="cn"><%= one.cn%></p>
    <p><%= one.grammer%></p>
    <%= @map[one].each do |en, zh| %>
        <div class="en"><%= en %></div>
        <div class="zh"><%= zh %></div>
    <br/>
    <% end %>
    </p>
<% end%>

controller 代码

class CollinsWordsController < ApplicationController
  def index
       word = params[:word]
        @list = Zhmultiword.where :word => word
        @map = {}
        @list.each do |one|
            example = {}
            doc = Nokogiri::XML(one.example)
            doc.xpath('//pair').each do |pair|
                en = pair.xpath('//en')[0].text
                zh = pair.xpath('//zh')[0].text
                example[en] = zh
            end
            @map[one]= example
        end

  end
end

其中 @list 是 colins 字典中一个单词的多个词义的解释。@map以之为键，以这个词义下多个例句组成的 hash 为值。

错误现象 1——遍历 hash 多出的输出

可能是我 erb 中写的遍历语法有问题，在生成的 html 中发现了多余的字符。如下图所示:

错误现象 2——遍历 list 多出的输出

此外，在 html 的最后，发现多出了 do | one | ... end 之中 one 的输出

我收到了类似尼日利亚骗局的 email

jiyuhang110 — Mon, 18 Jan 2016 23:04:01 +0800

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Windowns 10，昨天还在用 Ruby，今天 ruby.exe 突然找不到

jiyuhang110 — Sun, 13 Dec 2015 19:44:28 +0800

使用 rubystack 安装的 ruby。昨天还好好的，今天刚写一个脚本准备执行，发现 bin 目录下没有 ruby.exe。irb, rails 等程序都用不了 win10 系统，路径是 Bitnami\rubystack-2.0.0-35\ruby\bin 昨天晚上 win10 自动更新过。

求助：在排除我手动删除的情况下，ruby.exe 程序可能会被什么程序删除？即使删除，是否操作系统会留下痕迹？ ps：我没有安装杀毒软件，昨天晚上 win10 自动更新过。