一个不依赖其它任何安全库的SHA1算法的实现，并且有三种调用方式，其中部分源码含有注释，本代码已被我用到金融方面的应用中。-ON划词翻译ON实时翻译



SHA1 algorithm to achieve a does not depend on any other security , and there are three kinds of call mode, part of source code contains the notes, this code has been used in the financial aspects of my application.