要想使用Tensorflow API，首先要知道它能干什么。Tensorflow具有Python、C++、Java、Go等多种语言API，其中Python的API是最简单和好用的。

    Asserts and boolean checks
    Building Graphs
    Constants, Sequences, and Random Values
    Control Flow
    Data IO (Python functions)
    Higher Order Functions
    Histograms
    Images
    Inputs and Readers
    Math
    Neural Network
    Running Graphs
    Sparse Tensors
    Spectral Functions
    Strings
    Summary Operations
    TensorFlow Debugger
    Tensor Handle Operations
    Tensor Transformations
    Testing
    Training
    Variables
    Wraps python functions
    BayesFlow Entropy (contrib)
    BayesFlow Monte Carlo (contrib)
    BayesFlow Stochastic Graph (contrib)
    BayesFlow Stochastic Tensors (contrib)
    BayesFlow Variational Inference (contrib)
    Copying Graph Elements (contrib)
    CRF (contrib)
    FFmpeg (contrib)
    Framework (contrib)
    Graph Editor (contrib)
    Integrate (contrib)
    Layers (contrib)
    Learn (contrib)
    Linear Algebra (contrib)
    Losses (contrib)
    Metrics (contrib)
    Optimization (contrib)
    Random variable transformations (contrib)
    RNN and Cells (contrib)
    Seq2seq Library (contrib)
    Statistical Distributions (contrib)
    Training (contrib)
    Utilities (contrib)

    未完待续...

13 Tensorflow API主要功能