numpy中的reshape用法

在numpy中，reshape函数有多种用法可以实现数组的重塑。下面是几种常见的用法：

1. 使用reshape(-1,n)可以将数组转换成n列的形式，行数会被自动计算。例如，np.arange(16).reshape(2,8)可以生成一个16个元素的数组，以2行8列的形式显示。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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