另一方面，它可以使用在一个带括号的表达式或在第二个表达式在这样的环境条件操作符。
On the other hand, it can be used within a parenthesized expression or within the second expression of a conditional operator in such contexts.
而且由于每个UNIX命令都返回一个指示成功或失败的状态代码，因此，您可以使用任何命令作为“条件”——而不仅仅是使用测试操作符。
And because every UNIX command returns a status code reflecting success or failure, you can use any command as a conditional — not just the test operators.
使用右上角的绿色对勾把第一个数据流操作符连接到第二个，这会建立有条件连接。
Connect the first data flow operator to the second using the green check mark in the upper right corner to make a conditional connection.
一定要注意一点：eca规则中介绍的时间操作符是一个通用的概念，可以应用于其他规则子类型中的条件。
It is important to note that the temporal operator as described in ECA rule is a more general concept that can apply to conditions within the other sub types of rule.
通过使用唯一的术语编号将表连接起来，为TableJoin操作符指定条件，术语编号为文本分析结果集中的SKILL_ID，和位于分类表中的TERM_ID。
Specify the condition for the table Join operator by connecting the tables using the unique term number, which is SKILL_ID in the result set of the text analysis and TERM_ID in the taxonomy table.
对于这个示例，使用数据流操作符输出端的蓝色箭头定义无条件连接。
For this example, define an unconditional connection using the blue arrow on the output port of the data flow operator.
使用无条件连接把Email操作符连接到fail操作符。
Connect the Email operator to the Fail operator using an unconditional connection.
使用无条件连接把Email操作符连接到fail操作符。
Connect the Email operator to the Fail operator using an unconditional connection.
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