“喜欢”和“ =”之间有什么区别？

Question

“ like”和“ =”有什么区别？例如：

  def sequence
    slug = title.to_param
    sequence = Movie.where("slug = '#{slug}-%'").count + 2
    "#{slug}-#{sequence}"
  end

和

  def sequence
    slug = title.to_param
    sequence = Movie.where("slug  like #{slug}-%").count + 2
    "#{slug}-#{sequence}"
  end

Answer 1

“ =”将返回精确匹配“ LIKE”将返回部分匹配项