<span class="keyword">Function</span> <span class="identifier">GetLongitudeDifference</span> ( 
	<span class="parameter">km</span> <span class="keyword">As</span> <span class="identifier">Double</span>
) <span class="keyword">As</span> <span class="identifier">Double</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EBCA");</script><h4 class="subHeading">参数</h4><dl><dt><span class="parameter">km</span></dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/syste