惠普打印机控制语言HPPCL ？
当计算机的某个部分必须被直接控制时，如监视器上的单个点或者流向打印机的单个字符，这时也使用汇编语言。
Assembly languages are also used when some part of the computer has to be controlled directly, such as individual dots on a monitor or the flow of individual characters to a printer.
用三种不同风格的计算机语言实现初始化打印机的自动性，为应用程序控制打印机提供了程序构件。
This article makes it automatic to initialize printers with three deferent languages of computer, and provides program components for application program to control printer.
用三种不同风格的计算机语言实现初始化打印机的自动性，为应用程序控制打印机提供了程序构件。
This article makes it automatic to initialize printers with three deferent languages of computer, and provides program components for application program to control printer.
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