目录简介基本类型比较（元素顺序必须一致）忽略顺序比较复杂类型（自定义对象列表）判断是否完全包含对方（不关心顺序）使用 SetEquals（无序、无重复判断）比较两个 null 列表比较两个包含null元素的列表性能优化建
i am creating a sample movie (MVC) application. I was getting fine with Viewing and Creating a new record, but when i wrote the code to get the details of a particular record i met with the following
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