数字模拟电路
这是我在上课中看着很好的资料,分享给大家,数字模拟电路
目录如下: 1.引子.............................................3 2.正则表达式的历史..................................3 3.正则表达式定义....................................3 3.1普通字符.......................................4 3.2非打印字符.....................................4 3.3特殊字符.......................................4 3.4限定字符.......................................5 3.5定位符.........................................6 3.6选择...........................................6 3.7后向引用........................................6 4各种操作的运算优先级.................................6 5全部付好解释........................................6 6部分例子............................................9 7正则表达式匹配规则....................................10 7.1基本匹配规则......................................10 1.2字符集...........................................11 7.3确定重复出现......................................13 很好的,推荐给大家。