{"id":419,"date":"2023-12-02T20:24:09","date_gmt":"2023-12-02T12:24:09","guid":{"rendered":"https:\/\/www.n61.net\/?p=419"},"modified":"2023-12-02T20:24:09","modified_gmt":"2023-12-02T12:24:09","slug":"csharp-common-recursive-algorithms","status":"publish","type":"post","link":"https:\/\/diji.net\/?p=419","title":{"rendered":"C#\u9762\u8bd5\u4e2d\u5e38\u89c1\u9012\u5f52\u7b97\u6cd5"},"content":{"rendered":"<h2>\u524d\u8a00<\/h2>\n<p>\u4eca\u5929\u6211\u4eec\u4e3b\u8981\u603b\u7ed3\u4e00\u4e0bC#\u9762\u8bd5\u4e2d\u5e38\u89c1\u9012\u5f52\u7b97\u6cd5\u3002<\/p>\n<h2>C#\u9012\u5f52\u7b97\u6cd5\u8ba1\u7b97\u9636\u4e58\u7684\u65b9\u6cd5<\/h2>\n<p>\u4e00\u4e2a\u6b63\u6574\u6570\u7684\u9636\u4e58\uff08factorial\uff09\u662f\u6240\u6709\u5c0f\u4e8e\u53ca\u7b49\u4e8e\u8be5\u6570\u7684\u6b63\u6574\u6570\u7684\u79ef\uff0c\u5e76\u4e140\u7684\u9636\u4e58\u4e3a1\u3002\u81ea\u7136\u6570n\u7684\u9636\u4e58\u5199\u4f5cn!\u30021808\u5e74\uff0c\u57fa\u65af\u987f\u00b7\u5361\u66fc\u5f15\u8fdb\u8fd9\u4e2a\u8868\u793a\u6cd5\u3002<br \/>\n\u539f\u7406\uff1a\u4ea6\u5373n!=1\u00d72\u00d73\u00d7...\u00d7(n-1)\u00d7n\u3002\u9636\u4e58\u4ea6\u53ef\u4ee5\u9012\u5f52\u65b9\u5f0f\u5b9a\u4e49\uff1a0!=1\uff0cn!=(n-1)!\u00d7n\u3002<\/p>\n<p><pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0C#\u9012\u5f52\u7b97\u6cd5\u8ba1\u7b97\u9636\u4e58\u7684\u65b9\u6cd5\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4e00\u4e2a\u6b63\u6574\u6570\u7684\u9636\u4e58\uff08factorial\uff09\u662f\u6240\u6709\u5c0f\u4e8e\u53ca\u7b49\u4e8e\u8be5\u6570\u7684\u6b63\u6574\u6570\u7684\u79ef\uff0c\u5e76\u4e140\u7684\u9636\u4e58\u4e3a1\u3002\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u81ea\u7136\u6570n\u7684\u9636\u4e58\u5199\u4f5cn!\u30021808\u5e74\uff0c\u57fa\u65af\u987f\u00b7\u5361\u66fc\u5f15\u8fdb\u8fd9\u4e2a\u8868\u793a\u6cd5\u3002\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4ea6\u5373n!=1\u00d72\u00d73\u00d7...\u00d7(n-1)\u00d7n\u3002\u9636\u4e58\u4ea6\u53ef\u4ee5\u9012\u5f52\u65b9\u5f0f\u5b9a\u4e49\uff1a0!=1\uff0cn!=(n-1)!\u00d7n\u3002\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\uff1a120\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0RecursiveFactorial()\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0result\u00a0=\u00a0Factorial(5);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;5\u7684\u9636\u4e58\u4e3a\uff1a&quot;\u00a0+\u00a0result);\/\/5!=120\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0Factorial(int\u00a0n)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(n\u00a0==\u00a00\u00a0||\u00a0n\u00a0==\u00a01)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u9012\u5f52\u8c03\u7528\uff1a\u5f53\u524d\u6570n\u4e58\u4ee5\u524d\u9762\u6240\u6709\u6570\u7684\u9636\u4e58\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0n\u00a0*\u00a0Factorial(n\u00a0-\u00a01);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n<\/pre>\n<\/p>\n<h2>C#\u9012\u5f52\u7b97\u6cd5\u6570\u7ec4\u6c42<\/h2>\n<p><pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u9012\u5f52\u7b97\u6cd5\u6570\u7ec4\u6c42\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a259\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0RecursiveArraySum()\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int&#x5B;]\u00a0numbers\u00a0=\u00a0{\u00a01,\u00a088,\u00a066,\u00a04,\u00a0100\u00a0};\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0sum\u00a0=\u00a0ArraySum(numbers,\u00a00);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;\u6570\u7ec4\u5143\u7d20\u7684\u603b\u548c\u4e3a\uff1a&quot;\u00a0+\u00a0sum);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u7684\u603b\u548c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;param\u00a0name=&quot;arr&quot;&gt;arr&lt;\/param&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;param\u00a0name=&quot;index&quot;&gt;index&lt;\/param&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;returns&gt;&lt;\/returns&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0ArraySum(int&#x5B;]\u00a0arr,\u00a0int\u00a0index)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(index\u00a0&gt;=\u00a0arr.Length)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u57fa\u672c\u60c5\u51b5\uff1a\u6570\u7ec4\u4e3a\u7a7a\u6216\u8005\u5df2\u7ecf\u904d\u5386\u5b8c\u6240\u6709\u5143\u7d20\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u9012\u5f52\u8c03\u7528\uff1a\u5f53\u524d\u5143\u7d20\u52a0\u4e0a\u5269\u4f59\u5143\u7d20\u7684\u603b\u548c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0arr&#x5B;index]\u00a0+\u00a0ArraySum(arr,\u00a0index\u00a0+\u00a01);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n<\/pre>\n<\/p>\n<h2>C#\u4f7f\u7528\u9012\u5f52\u7b97\u6cd5\u6765\u5b9e\u73b0\u6c42\u89e3\u6590\u6ce2\u7eb3\u5951\u6570\u5217\u4e2d\u7b2c30\u4f4d\u6570\u7684\u503c<\/h2>\n<p>\u4e00\u5217\u6570\u7684\u89c4\u5219\u5982\u4e0b : 1 \u3001 1 \u3001 2 \u3001 3 \u3001 5 \u3001 8 \u3001 13 \u3001 21 \u3001 34\u2026 \u6c42\u7b2c 30 \u4f4d\u6570\u662f\u591a\u5c11\uff0c \u7528\u9012\u5f52\u7b97\u6cd5\u5b9e\u73b0\u3002<\/p>\n<pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4f7f\u7528\u9012\u5f52\u7b97\u6cd5\u6765\u5b9e\u73b0\u6c42\u89e3\u6590\u6ce2\u7eb3\u5951\u6570\u5217\u4e2d\u7b2c30\u4f4d\u6570\u7684\u503c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4e00\u5217\u6570\u7684\u89c4\u5219\u5982\u4e0b\u00a0:\u00a01\u00a0\u3001\u00a01\u00a0\u3001\u00a02\u00a0\u3001\u00a03\u00a0\u3001\u00a05\u00a0\u3001\u00a08\u00a0\u3001\u00a013\u00a0\u3001\u00a021\u00a0\u3001\u00a034\u2026\u00a0\u6c42\u7b2c\u00a030\u00a0\u4f4d\u6570\u662f\u591a\u5c11\uff0c\u00a0\u7528\u9012\u5f52\u7b97\u6cd5\u5b9e\u73b0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a832040\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0FibonacciSum()\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0n\u00a0=\u00a030;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0result\u00a0=\u00a0Fibonacci(n);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;\u7b2c\u00a0&quot;\u00a0+\u00a0n\u00a0+\u00a0&quot;\u4f4d\u6590\u6ce2\u90a3\u5951\u6570\u662f\uff1a&quot;\u00a0+\u00a0result);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0Fibonacci(int\u00a0n)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(n\u00a0&lt;=\u00a00)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if\u00a0(n\u00a0&gt;\u00a00\u00a0&amp;&amp;\u00a0n\u00a0&lt;=\u00a02)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u9012\u5f52\u60c5\u51b5\uff1a\u8c03\u7528\u81ea\u8eab\u8ba1\u7b97\u524d\u4e24\u4e2a\u6570\u5b57\u4e4b\u548c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0Fibonacci(n\u00a0-\u00a01)\u00a0+\u00a0Fibonacci(n\u00a0-\u00a02);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n<\/pre>\n<\/p>\n<h2>\u4f7f\u7528C#\u8bed\u8a00\u7f16\u5199\u7684\u9012\u5f52\u7b97\u6cd5\u6765\u8ba1\u7b971+2+3+4+\u2026+100\u7684\u7ed3\u679c<\/h2>\n<p><pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4f7f\u7528C#\u8bed\u8a00\u7f16\u5199\u7684\u9012\u5f52\u7b97\u6cd5\u6765\u8ba1\u7b971+2+3+4+\u2026+100\u7684\u7ed3\u679c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\u662f\uff1a5050\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0RecursiveAlgorithmSum()\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0result\u00a0=\u00a0SumNumbers(100);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;1+2+3+4+...+100\u00a0=\u00a0&quot;\u00a0+\u00a0result);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0SumNumbers(int\u00a0n)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(n\u00a0==\u00a01)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a01;\/\/\u9012\u5f52\u7ed3\u675f\u6761\u4ef6\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0n\u00a0+\u00a0SumNumbers(n\u00a0-\u00a01);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n<\/pre>\n<\/p>\n<p>\u539f\u6587\uff1a<a href=\"https:\/\/www.cnblogs.com\/Can-daydayup\/p\/17872125.html\"><a href=\"https:\/\/www.cnblogs.com\/Can-daydayup\/p\/17872125.html\">https:\/\/www.cnblogs.com\/Can-daydayup\/p\/17872125.html<\/a><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u4eca\u5929\u6211\u4eec\u4e3b\u8981\u603b\u7ed3\u4e00\u4e0bC#\u9762\u8bd5\u4e2d\u5e38\u89c1\u9012\u5f52\u7b97\u6cd5\u3002 C#\u9012\u5f52\u7b97\u6cd5\u8ba1\u7b97\u9636\u4e58\u7684\u65b9\u6cd5 \u4e00\u4e2a\u6b63\u6574\u6570\u7684\u9636\u4e58\uff08factorial\uff09\u662f\u6240\u6709\u5c0f\u4e8e\u53ca\u7b49\u4e8e\u8be5\u6570\u7684\u6b63\u6574\u6570\u7684\u79ef\uff0c\u5e76\u4e140\u7684\u9636\u4e58\u4e3a1\u3002\u81ea\u7136\u6570n\u7684\u9636\u4e58\u5199\u4f5cn!\u30021808\u5e74\uff0c\u57fa\u65af\u987f\u00b7\u5361\u66fc\u5f15\u8fdb\u8fd9\u4e2a\u8868\u793a\u6cd5\u3002 \u539f\u7406\uff1a\u4ea6\u5373n!=1\u00d72\u00d73\u00d7&#8230;\u00d7(n-1)\u00d7n\u3002\u9636\u4e58\u4ea6\u53ef\u4ee5\u9012\u5f52\u65b9\u5f0f\u5b9a\u4e49\uff1a0!=1\uff0cn!=(n-1)!\u00d7n\u3002 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0C#\u9012\u5f52\u7b97\u6cd5\u8ba1\u7b97\u9636\u4e58\u7684\u65b9\u6cd5 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4e00\u4e2a\u6b63\u6574\u6570\u7684\u9636\u4e58\uff08factorial\uff09\u662f\u6240\u6709\u5c0f\u4e8e\u53ca\u7b49\u4e8e\u8be5\u6570\u7684\u6b63\u6574\u6570\u7684\u79ef\uff0c\u5e76\u4e140\u7684\u9636\u4e58\u4e3a1\u3002 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u81ea\u7136\u6570n\u7684\u9636\u4e58\u5199\u4f5cn!\u30021808\u5e74\uff0c\u57fa\u65af\u987f\u00b7\u5361\u66fc\u5f15\u8fdb\u8fd9\u4e2a\u8868\u793a\u6cd5\u3002 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u4ea6\u5373n!=1\u00d72\u00d73\u00d7&#8230;\u00d7(n-1)\u00d7n\u3002\u9636\u4e58\u4ea6\u53ef\u4ee5\u9012\u5f52\u65b9\u5f0f\u5b9a\u4e49\uff1a0!=1\uff0cn!=(n-1)!\u00d7n\u3002 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\uff1a120 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0RecursiveFactorial() \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0result\u00a0=\u00a0Factorial(5); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;5\u7684\u9636\u4e58\u4e3a\uff1a&quot;\u00a0+\u00a0result);\/\/5!=120 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0Factorial(int\u00a0n) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(n\u00a0==\u00a00\u00a0||\u00a0n\u00a0==\u00a01) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a01; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u9012\u5f52\u8c03\u7528\uff1a\u5f53\u524d\u6570n\u4e58\u4ee5\u524d\u9762\u6240\u6709\u6570\u7684\u9636\u4e58 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0n\u00a0*\u00a0Factorial(n\u00a0&#8211;\u00a01); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} C#\u9012\u5f52\u7b97\u6cd5\u6570\u7ec4\u6c42 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u9012\u5f52\u7b97\u6cd5\u6570\u7ec4\u6c42 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a259 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0RecursiveArraySum() \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int&#x5B;]\u00a0numbers\u00a0=\u00a0{\u00a01,\u00a088,\u00a066,\u00a04,\u00a0100\u00a0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0sum\u00a0=\u00a0ArraySum(numbers,\u00a00); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Console.WriteLine(&quot;\u6570\u7ec4\u5143\u7d20\u7684\u603b\u548c\u4e3a\uff1a&quot;\u00a0+\u00a0sum); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u7684\u603b\u548c \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;\/summary&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;param\u00a0name=&quot;arr&quot;&gt;arr&lt;\/param&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;param\u00a0name=&quot;index&quot;&gt;index&lt;\/param&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0&lt;returns&gt;&lt;\/returns&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0int\u00a0ArraySum(int&#x5B;]\u00a0arr,\u00a0int\u00a0index) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0(index\u00a0&gt;=\u00a0arr.Length) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u57fa\u672c\u60c5\u51b5\uff1a\u6570\u7ec4\u4e3a\u7a7a\u6216\u8005\u5df2\u7ecf\u904d\u5386\u5b8c\u6240\u6709\u5143\u7d20 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-419","post","type-post","status-publish","format-standard","hentry","category-csharp"],"_links":{"self":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=419"}],"version-history":[{"count":0,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/419\/revisions"}],"wp:attachment":[{"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}