52 lines
3.0 KiB
HTML
52 lines
3.0 KiB
HTML
<p>集合的并集是合并集合的项，如下图所示：</p>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917144206047-1864562511.png" alt="" /></p>
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<div class="cnblogs_code">
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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<pre>List<int> ls1 = new List<int>() { 1,2,3,5,7,9 };
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List<int> ls2 = new List<int>() { 2,4,6,8,9,10};
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IEnumerable<int> unionLs = ls1.Union(ls2);
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foreach (int item in unionLs)
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{
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Console.Write("{0}\t", item);
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}</pre>
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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</div>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917144318985-192169247.png" alt="" /></p>
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<p>集合的交集是取集合的共同的项，如下图所示：</p>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917144827016-1898957755.png" alt="" /></p>
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<p> </p>
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<div class="cnblogs_code">
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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<pre>List<int> ls1 = new List<int>() { 1,2,3,5,7,9 };
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List<int> ls2 = new List<int>() { 2,4,6,8,9,10};
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IEnumerable<int> intersectLs = ls1.Intersect(ls2);
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foreach (int item in intersectLs)
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{
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Console.Write("{0}\t",item);
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}</pre>
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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</div>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917144922844-845181128.png" alt="" /></p>
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<p>集合的差集是取在该集合中而不在另一集合中的所有的项，如下图所示：</p>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917145318969-63236217.png" alt="" /></p>
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<p> </p>
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<div class="cnblogs_code">
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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<pre>List<int> ls1 = new List<int>() { 1,2,3,5,7,9 };
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List<int> ls2 = new List<int>() { 2,4,6,8,9,10};
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IEnumerable<int> exceptLs = ls1.Except(ls2);
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foreach (int item in exceptLs)
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{
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Console.Write("{0}\t", item);
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}</pre>
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<div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a title="复制代码"><img src="https://common.cnblogs.com/images/copycode.gif" alt="复制代码" /></a></span></div>
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</div>
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<p><img src="https://images2017.cnblogs.com/blog/458686/201709/458686-20170917145415688-1381771791.png" alt="" /></p>
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<p> </p>
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<p>转自：https://www.cnblogs.com/godbell/p/7535637.html</p>
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<p> </p> |