ValueError: Cannot feed value of shape (0,) for Tensor ‘Placeholder

ValueError: Cannot feed value of shape (0,) for Tensor 'Placeholder_15:0', which has shape '(16, 498, 498, 3)'

出现原因为输入数据label是[],Placeholder已经被设置为(16, 498, 498, 3)，而需要仔细检查程序。