The Where method is being invoked on a collection object, but it is not a member of the collection framework.

Where方法是在集合对象上调用的，但它不是该集合框架的成员。

youdao

With this the database is only queried once and we will then iterate over the result set that is stored within the collection object. Here is the changed sample code.

这样，数据库就只会查询一次，并且我们接下来也可以遍历存储在集合对象里面的结果集。

youdao

If you have a Domino view that shows orders and if documents are called order detail, then you may have a collection object called orders and a document object called OrderDetails.

如果您具有显示订单的Domino视图并且文档名为order detail，则您很可能就会有一个名为Orders的collection对象和一个名为OrderDetails的document对象。

youdao

An object is a collection of data and functions.

对象就是数据和函数的集合。

麻省理工公开课 - 计算机科学及编程导论课程节选

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