| 摘要 |
<p>PURPOSE:To easily learn a process concept and at the same time to facilitate the selection of a real command, etc., by using an upper layer command extracting means which reads out a real command selected at the time point when the return is instructed to the upper layer command and also reads out the original upper layer command described at a command describing part. CONSTITUTION:Each real command and its original upper layer command name are described at a command describing part 1. An upper layer command extracting means 2 reads out a real command selected at the time point when the return is instructed to an upper layer command as well as the original upper layer command described at the part 1. Thus it is possible to easily learn a process concept in a relevant field and also to facilitate the selection of the real command, etc.</p> |
