You can group selectors. Separate each selector with a comma. In the example below we have grouped all the header elements.
你可以将多个选择器组合在一起，用逗号链接。
This problem can be solved by temporarily excluding the incomplete group from the message selector, or by copying the group to an in-memory or persistent store for completion later.
这个问题可以通过将不完整的组临时从消息选择器中排除得到解决，也可以将该组复制到内存中或持久性存储中，以便稍后完成。
We then set up a second selector that specifies a sequence number of 2 along with the group identifier.
然后，我们将设置第二个选择器，以执行序列号2和相应的组标识符。
An event group profile object defines a selector string which determines which events belong to this group.
事件组概要对象定义了选择器(selector)字符串来决定哪些事件属于这个组。
Figure 4 illustrates how a selector is composed to group files for the load. A selector in general has three types of specs to select files.
图4说明了选择器如何构成以对加载的文件进行分组。
Like a rule group, a selector has date range entries, selection criteria, and a default destination.
与规则组一样，选择器拥有日期范围条目、选择条件和缺省目标。
We start with a selector matching any message with a sequence number of 1, and once we have that message, we determine which group it is in.
首先，我们使用选择器来匹配任何序列号为1 的消息，获得此消息后，我们将确定其所属的组。
You select a destination in a selector the same as your would for a rule group.
您在选择器中选择的目标与为规则组中选择的相同。
Some people prefer to group their related selector elements together such as structure, links, lists, headings, and so on.
有的人喜欢将相关的选择器元素集合在一起，例如结构，链接，列表，标题，等等。
This is a date selector. You can select a Day, Month and Year using a group of select boxes.
这是一个日期选择器，你可以用一组选择框来选择年、月、日。
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
依据指定的索引键选择器函式来群组序列的项目，并从每个群组及其索引键建立结果值。
This differs from the result selector in a non-group join, which cannot access elements from the first collection that have no match in the second collection.
这与无群组联结的结果选取器不同，如果在第二个集合中没有相符项目，该选取器就无法存取第一个集合中的项目。
This differs from the result selector in a non-group join, which cannot access elements from the first collection that have no match in the second collection.
这与无群组联结的结果选取器不同，如果在第二个集合中没有相符项目，该选取器就无法存取第一个集合中的项目。
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