If you are afraid of soldering Nokia LCD with your hands and still want to check your code.. here is a solution for you.. One of our Russian friend has made this sweet Nokia 3310 LCD model which simulate the original Nokia LCD. This Proteus

空间向量模型VSM的c++实现代码，有利于进行文本分类预处理工作-The c++ vector space model VSM implementation code, help for text classification preprocessing