MT4编程参考，详细介绍MQ4语言的语法和使用方法，非常实用，在网上很难找到。-MT4 programming reference, detailing MQ4 language syntax and use, very practical, it is difficult to find online.

语音压缩，A律语音压缩以及C语言下的编程方法-Voice compression, A Law of voice compression, as well as C programming language under the Ways