从HDAPS传感器读取数据非常简单，由于其不可查找特性，每次读取数据时都需要打开和关闭文件。
Reading data from the HDAPS sensor is a straightforward process requiring an open and close of the file at each read due to its nonseekable nature.
注意：由于DesignData工具和 Design 工具使用同一个文件，因此最好在关闭一个工具之后再打开另一个工具。
Note: Since the Design Data tool and the Design tool use the same file, it's a good practice to close one tool before opening the other.
在继续之前，先关闭您的mongrel和PostgreSQL实例，这只是为了确保任何打开的文件都得到正确处理。
Before proceeding, shut down your mongrel and PostgreSQL instances, just to make sure any open files are handled correctly.
一定的依赖关系(Linux文件打开、读取、写入以及关闭的概念；使用文件描述符和可以用来打开文件的模式；基本的Python结构的概念)。
Certain dependencies (Linux file open, read, write, close concepts; using the file descriptor and the modes that the file can be opened in; basic Python structure concepts).
然后这个示例关闭文件，并用读取和添加模式“r +a ”重新打开文件。
This example then closes the file and reopens it using the read and append mode, "r + a".
从有关设备打开和关闭的讲解可知，我们需要两个参数(文件路径名和设备访问模式)来打开Linux设备。
Remember from the section on opening and closing that we need two parameters (file path name and access mode to the device) to open a device on Linux.
文件的打开、关闭、读和写函数(fopen 、fclose 、fgets 、getc等等)、printf函数系列和setvbuf函数都需要它。
It is needed for the file opening, closing, reading, and writing functions (fopen , fclose , fgets , getc , and so on), for the printf family of functions, and for the setvbuf function.
MessageEmitter和MessageLogger支持打开和关闭日志记录的能力，以及记录到平面文件的选项。
Message Emitter and Message Logger enable the ability to turn logging on and off, as well as the option to log to a flat file.
确保用户已关闭在服务器上打开的所有文件和连接。
Make sure that users close all files and connections that they have open on the server.
资源文件将多次被打开和关闭。
在多数应用中，已经建立好的一整套标准的文件系统管理包括了打开、保存、关闭命令，以及相关的另存为、保存修改和打开对话框。
The established standard suite of file management for most applications includes Open , Save, and Close commands, and the related Save As, Save Changes, and Open dialogs.
停留的操作最后完成，和搜索索引服务最后关闭该句柄，它周围的获取打开，但是它最终会无意关闭日志文件句柄。
The stuck operation finally completes, and the search index service finally gets around to closing that handle it had open, but it ends up unwittingly closing the log file handle.
停留的操作最后完成，和搜索索引服务最后关闭该句柄，它周围的获取打开，但是它最终会无意关闭日志文件句柄。
The stuck operation finally completes, and the search index service finally gets around to closing that handle it had open, but it ends up unwittingly closing the log file handle.
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