An application binary interface includes linkage structures for interfacing a binary application program to a digital computer. A function in a relocatable shared object module obtains the absolute address of a Global Offset Table (GOT) in the module
So, lets look at how CBC works first. The following picture shows the encryption when using CBC (in this case, using AES as the cipher). Basically, Cipher-Block-Chaining means that previous to putting the cleartext data block into the cipher itself (
计数统计就是统计某一项出现的次数.实际应用中很多需求需要用到这个模型.比如测试样本中某一指出现的次数.日志分析中某一消息出现的频率等等'这种类似的需求有很多实现方法.下面就列举几条. (1)使用dict 看下面代码 #coding=utf-8 data = ['a','2',2,4,5,'2','b',4,7,'a',5,'d','a','z'] count_frq = dict() for one in data: if one in count_frq: cou