Learning machine learning, the first step is to do a simple handwritten numeral recognition, I use the MNIST data set (can also be used, other data sets are similar, the principle of the algorithm is KNN (download) library directly call the function, the algorithm implementation is not too much to care about). The Python code of the MNIST data set has also been seen online, but it feels a bit complicated, and it's too much to see as much code as a beginner...... Here to share my code, although not perfect, but you can provide a simple idea for other beginners.

network2.py

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