There is no such test for the message field because it's the core of a flit.

对于message字段则没有这样的测试，因为它是一个flit的核心。

youdao

Enter a string, such as hello, in the message field; the message is then published under the topic Greetings.

在消息域中输入一个字符串，如hello，然后该消息将在主题Greetings之下进行发布。

youdao

We do want to specify a Message for it, however, so we click on the plus sign to the right of the Message field.

但我们确实希望为其指定一条Message，因此单击Message字段右侧的加号。

youdao

We do want to specify a Message for it, however, so we click on the plus sign to the right of the Message field.

但我们确实希望为其指定一条Message，因此单击Message字段右侧的加号。

youdao