开头部分引入time模块,

import time

然后在每个epoch循环中开始处加入:

since = time.time()

结尾处加入以下代码: 

time_elapsed = time.time() - since
print('Training complete in {:.0f}m {:.0f}s'.format(
    time_elapsed // 60, time_elapsed % 60))

 

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