Question

我有这样的元素：

<span class="narrowValue">&nbsp;(15,728)</span>

我正在这样抓：

  @department_hash = Hash.new {|h,k| h[k]=[]}
  department.css('.narrowValue').each do | department |
    @department_hash["department"] << department.text
  end

得到这样的结果：

{"department"=>[" (15,725)", " (243,256)", " (510,337)", " (46,002)", " (14,109)", " (358)", " (5,787)", " (19,818)"]}

但我不需要括号。

我怎样才能获得数字？

Answer 1

在将文本推送到数组之前，请删除括号。

@department_hash = Hash.new {|h,k| h[k]=[]}
department.css('.narrowValue').each do | department |
  @department_hash["department"] << department.text.gsub(/^[() \u00a0]+|[() \u00a0]+$/, '')
end

或者，您可以使用以下正则表达式：

/^[()[:space:]]+|[()[:space:]]+$/

[[:space:]]匹配，但\s与nbsp不匹配。

Answer 2

使用以下修改：

@department_hash["department"] << department.text.gsub(/[^\d,]/,"")

Answer 3

@department_hash["department"] << department.text[/[\d,]+/]

仅刮取字符串中的数字

3 个答案: