python numpy求和

在Python的NumPy库中，可以使用numpy.sum()函数来算数组元素的和。该函数的语法如下：numpy.sum(a, axis=None, dtype=None, out=None, keepdims=, initial=)。其中，参数a表示要求和的数组，axis表示求和的维度，默认为None表示对整个数组求和，dtype表示返回结果的数据类型，out表示存储结果的数组，keepdims表示保持原数组的维度，initial表示初始值。通过调用numpy.sum()函数，可以方便地计算数组的和。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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