本節練習代碼: https://github.com/MorvanZhou/tutorials/tree/master/tensorflowTUT/tf17_dropout 實際機器學習問題當中,我們很常遇到overfitting 的問題.Tensorflow 附有一個很好解決overfitting 問題的工具... 來源：https://morvanzhou.github.io/tutorials/machine-learning/tensorflow/5-02-dropout/