libsvm用于手写数字的识别，数据源自uci，可以到uci数据集网站直接下载semeion.data数据，放在文件夹中可以直接调用-The libsvm used for handwritten digit recognition, data from uci . You can go to uci datasets sites directly download semeion.data. The data can be called directly after putting into the folder.