| 释义 |
superbar
上横线
The line drawn over a digital variable to form its complement or the logic NOT function. For example, if A=the digital variable A, then A&+{-}=NOT A. Because superbars are hard to type, you will sometimes see an asterisk used instead: A&+{*}=NOT A.
数字变量上方的一横线,用以表示该变量的补码或逻辑“非”运算。例如,A=数字变量A,则=NOT A。因为上横线不易打印,有时用星号 代替:A&+{*}=NOT A。 |