One approach is to run as root, open the privileged port as soon as possible, and then permanently drop root privileges (including any privileged groups the process belongs to).
一个方法是以root 身份运行，尽可能快地打开需要特权的端 口，然后永久去除 root特权（包括进程所属的任何有特权的组）。
The best approach is to define interfaces (WSDL port types) in a way that groups semantically related transactions.
最好的方法是，通过对语义相关的事务进行分组来定义接口(WSDL端口类型)。
For communication among parallel print port of PC and multiple single-chips, interface is divided into data, state and control groups respectively controlled by each register.
PC并行打印口与多台下位单片机的通讯，将接口分成数据、状态、控制三组，由其寄存器分别控制。
For communication among parallel print port of PC and multiple single-chips, interface is divided into data, state and control groups respectively controlled by each register.
PC并行打印口与多台下位单片机的通讯，将接口分成数据、状态、控制三组，由其寄存器分别控制。
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