一个用python开发的音频信号采集与分许程序，主要功能是：用计算机声卡采集数据；对信号进行傅里叶变换；原始信号和信号频谱图形显示。-A the python the developed audio signal acquisition Xu program, the main function: collecting data with a computer sound card Fourier transform of the signal graphical display of or

基于Python的回归树实验，包含预剪枝和后剪枝；模型树和回归树测试。-Python-based test regression trees, including the pre-pruning and pruning the model tree and regression tree test.

Android开发案例，Python编程(Android development case, Python programming)