对KDD数据里的符号性数据进行数值化，然后再归一化，提供输入(The symbolic data in the KDD data is numerically calculated)

基于Tensorflow用CNN（卷积神经网络）处理kdd99数据集，代码包括预处理代码和分类代码，准确率99.6%以上，并且快速收敛至最优值。(Based on Tensorflow (convolutional neural network) processing KDD99 data set based on CNN, the code includes preprocessing code and classification code, the accuracy rate is mor