擅长:python、mysql、java
<p>是的,它允许将零大小的数组传递给那些内部函数(以及其他许多函数),而且Fortran标准明确要求这些结果。在</p>
<p>对于<code>product</code>(F2008,13.7.133):</p>
<blockquote>
<p>The result of PRODUCT (ARRAY) has a value equal to a processor-dependent approximation to the product of all the elements of ARRAY or has the value one if ARRAY has size zero.</p>
</blockquote>
<p>对于<code>sum</code>(F2008,13.7.161):</p>
<blockquote>
<p>The result of SUM (ARRAY) has a value equal to a processor-dependent approximation to the sum of all the elements of ARRAY or has the value zero if ARRAY has size zero.</p>
</blockquote>