A configuration item may be an environment variable or a change in the database configuration, such as its memory allocation.
配置项可以是环境变量或者数据库配置修改，例如数据库的内存分配。
Think about small mistakes such as typos in configuration lines, missing a loopback prefix in your routing protocol, or missing a small requirement in an exam item.
比如在配置中拼错单词或在你的路由协议配置遗漏了还回配置的前缀，以及遗漏细小的实验项目要求等。
Gets the project or project item for the configuration.
取得组态的专案或专案项目。
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