Keyboard input with echo 键盘输入带回应
To test if your attachments are working at runtime, echo the attachments passed in as input in the output, which can be done through a mediation flow component.
为了测试附件是否在运行时正常工作，在输出中将附件作为输入传递，这可以通过中介流组件完成。
We use an application called echo on a mainframe that echoes back the input text entered in the first screen.
我们在大型机上使用一个称为echo的应用程序，它能对输入第一个屏幕的输入文本进行回显。
The mediation flow checks the property's value, specified via user input, and then selects the echo service whose property matches that value.
中介流检查通过用户输入指定的该属性的值，然后选择其属性与该值匹配的 echo 服务。
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