Tensorflow is google second generation artificial intelligence learning system.Support for python and c++ languages, support algorithms such as CNN, RNN, and LSTM, and can be used for multiple in-depth learning areas such as voice recognition or image processing.It can run in embedded systems (such as mobile phones, tablets), PCS and distributed systems.It is one of the most popular deep learning platforms in the world.This lecture will give a  basic use of Tensorflow and the application of text classification.