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educoder/db/migrate/20190906025445_mofidy_platf...

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class MofidyPlatfromForShixuns < ActiveRecord::Migration[5.2]
def change
ps = PlatformSample.find_by(samples_type: 'introduction')
ps.update_column(:contents, '[comment]: <> (请在此添加实训简介,简单介绍一下实训的内容.以下是“基于Java语言的链表编程实训基础篇”实训的示例文)
链表Linked List是一种通用的数据结构主要用于表示和管理数量不确定的数据。链表可有效解决数组Array在动态数据管理方面的不足。
本实训项目的主要内容是基于Java语言开发一个具有基本功能的单链表从六个方面介绍链表相关知识并设置了六个关卡在线考察大家的链表编程能力。
![](/api/attachments/382806)')
end
end