Vim 删除不包含指定字符串的行:
:g/xxx/d,删除包含xxx的行
:v/xxx/d,删除不含xxx的行
工作-生活-记录
有个域名快到期了,查了一下现在可用的Godaddy优惠券,和大家一起分享一下。
好久没有关注电脑硬件了,发现自己的台式机又成古董了。转一张易迅上面看到的CPU天梯图:
准备做一个地图的应用,收集一些数据。
转载的行政区划代码规则。
图书的ISBN号码是图书的身份ID,有统一的命名规则和校验码程序,介绍一下ISBN的命名规则和校验码计算方法:
2012年7月的上海房价地图,虽然近一年过去了,还是有一些参考价值。至少可以看看各个板块价格分布,了解一下上海房价的总体趋势!
Just keep a note:
report_net_delta_delay -clock_net –threshold 0.01
The chipmakers use many technical terms in their day to day work, but in abbreviated forms. Beginners find it difficult to get along with these abbreviations unlike others. The Saint gathered and created a glossary of many acronyms that are frequently used in IC design industry.
SPEF (Standard Parasitic Exchange Format) is documented in chapter 9 of IEEE 1481-1999. Several methods of describing parasitics are documented, but we are discussing only few important one.