在主题转化之前声明这些实体非常麻烦而且容易出错。
It is tedious and error prone to declare these entities before the topics have been converted.
通过它可以保证变量在使用之前声明,从而避免打字错误等引起的程序错误。
Among other things, it ensures that variables are declared before they are used. This avoids bugs caused by typos, both common and annoying.
然后它发送请求给一些交换器,在消息的reply - to字段中包含了之前声明的回复队列的名字。
Then it sends some request to some exchange and includes the name of the previously declared reply queue in the reply-to property of the message.
A couple of announcements before we get started: tomorrow there will be a 10 minute quiz in recitation based upon the content of homework one.
在我们开始之前有几点声明:,明天会有一个10分钟的小测验,详细叙述课后作业内容。
It's a common mistake to make if you forget that I've actually declared that variable up top, but wait a minute, I know any time that I use a variable, I have to declare it.
这是一个通常犯的错误,如果你忘了,之前在前面已经声明了这个变量,等等,我知道在任何时候,我使用一个变量,我必须声明它。
increment I then declare increment early on.
在之前我声明了。
应用推荐