只需在Matlab中加载MNIST数据集

% 设置MNIST数据集的路径
datasetPath = 'D:\MNIST';

% 加载训练集图像数据
trainImagesFile = fullfile(datasetPath, 'train-images-idx3-ubyte');
trainImagesData = loadMNISTImages(trainImagesFile);

% 加载训练集标签数据
trainLabelsFile = fullfile(datasetPath, 'train-labels-idx1-ubyte');
trainLabelsData = loadMNISTLabels(trainLabelsFile);

% 加载测试集图像数据
testImagesFile = fullfile(datasetPath, 't10k-images-idx3-ubyte');
testImagesData = loadMNISTImages(testImagesFile);

% 加载测试集标签数据
testLabelsFile = fullfile(datasetPath, 't10k-labels-idx1-ubyte');
testLabelsData = loadMNISTLabels(testLabelsFile);