{"id":44,"date":"2026-05-02T02:45:21","date_gmt":"2026-05-01T18:45:21","guid":{"rendered":"https:\/\/www.orangejam.asia\/?p=44"},"modified":"2026-05-02T02:54:34","modified_gmt":"2026-05-01T18:54:34","slug":"%e6%8f%ad%e7%a7%98%e6%b8%b8%e6%88%8f%e6%8a%bd%e5%8d%a1%e8%83%8c%e5%90%8e%e7%9a%84%e6%95%b0%e5%ad%a6%e9%ad%94%e6%b3%95%ef%bc%9a%e4%bb%8e%e5%9b%ba%e5%ae%9a%e6%a6%82%e7%8e%87%e5%88%b0%e5%8a%a8%e6%80%81","status":"publish","type":"post","link":"https:\/\/www.orangejam.asia\/index.php\/2026\/05\/02\/%e6%8f%ad%e7%a7%98%e6%b8%b8%e6%88%8f%e6%8a%bd%e5%8d%a1%e8%83%8c%e5%90%8e%e7%9a%84%e6%95%b0%e5%ad%a6%e9%ad%94%e6%b3%95%ef%bc%9a%e4%bb%8e%e5%9b%ba%e5%ae%9a%e6%a6%82%e7%8e%87%e5%88%b0%e5%8a%a8%e6%80%81\/","title":{"rendered":"\u63ed\u79d8\u6e38\u620f\u62bd\u5361\u80cc\u540e\u7684\u6570\u5b66\u9b54\u6cd5\uff1a\u4ece\u56fa\u5b9a\u6982\u7387\u5230\u52a8\u6001\u6743\u91cd\u7684\u7b97\u6cd5\u6f14\u8fdb"},"content":{"rendered":"\n<p>\u5728\u6e38\u620f\u5f00\u53d1\u4e2d\uff0c\u62bd\u5361\uff08Gacha\uff09\u7cfb\u7edf\u53ef\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u968f\u673a\u6570\u751f\u6210\u5668\u3002\u5b83\u662f\u6838\u5fc3\u7684\u5546\u4e1a\u5316\u53d8\u73b0\u624b\u6bb5\uff0c\u66f4\u662f\u63a7\u5236\u6e38\u620f\u7ecf\u6d4e\u7cfb\u7edf\u548c\u73a9\u5bb6\u5fc3\u7406\u9884\u671f\u7684\u5173\u952e\u67a2\u7ebd\u3002<\/p>\n\n\n\n<p>\u4e00\u4e2a\u4f18\u79c0\u7684\u62bd\u5361\u7b97\u6cd5\uff0c\u9700\u8981\u5728\u201c\u73a9\u5bb6\u4f53\u9a8c\uff08\u51fa\u91d1\u7684\u723d\u611f\uff09\u201d\u548c\u201c\u6570\u503c\u63a7\u5236\uff08\u516c\u53f8\u7684\u6536\u76ca\uff09\u201d\u4e4b\u95f4\u627e\u5230\u5b8c\u7f8e\u7684\u5e73\u8861\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u4ece\u7a0b\u5e8f\u4e0e\u7b97\u6cd5\u7684\u89c6\u89d2\uff0c\u6df1\u5ea6\u89e3\u6790\u76ee\u524d\u5e02\u9762\u4e0a\u6700\u4e3b\u6d41\u7684\u4e09\u79cd\u62bd\u5361\u903b\u8f91\uff0c\u804a\u804a\u5b83\u4eec\u7684\u4f18\u7f3a\u70b9\u3001\u65f6\u95f4\/\u7a7a\u95f4\u590d\u6742\u5ea6\uff0c\u5e76\u9644\u5e26\u6838\u5fc3\u7684 Java \u5b9e\u73b0\u4ee3\u7801\u3002\u65e0\u8bba\u4f60\u662f\u6b63\u5728\u505a\u7cfb\u7edf\u7684\u5f00\u53d1\u8005\uff0c\u8fd8\u662f\u60f3\u770b\u900f\u673a\u5236\u7684\u73a9\u5bb6\uff0c\u8fd9\u7bc7\u5e72\u8d27\u90fd\u4e0d\u5bb9\u9519\u8fc7\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">01. \u7b80\u5355\u7c97\u66b4\u7684\u53e4\u5178\u6d3e\uff1a\u56fa\u5b9a\u6982\u7387 + \u786c\u4fdd\u5e95<\/h2>\n\n\n\n<p>\u8fd9\u662f\u65e9\u671f\u62bd\u5361\u6e38\u620f\u6700\u5e38\u89c1\u7684\u505a\u6cd5\u3002\u6bcf\u4e00\u6b21\u62bd\u5361\u7684\u6982\u7387\u90fd\u662f\u72ec\u7acb\u4e14\u56fa\u5b9a\u7684\uff0c\u4e3a\u4e86\u9632\u6b62\u73a9\u5bb6\u8fd0\u6c14\u6781\u5dee\uff08\u975e\u914b\uff09\u5bfc\u81f4\u6d41\u5931\uff0c\u7b56\u5212\u4eec\u52a0\u5165\u4e86\u4e00\u4e2a\u201c\u786c\u4fdd\u5e95\u201d\u673a\u5236\uff1a\u5982\u679c\u8fde\u7eed N \u6b21\u6ca1\u6709\u62bd\u5230\u6700\u9ad8\u7a00\u6709\u5ea6\u9053\u5177\uff0c\u7b2c N \u6b21\u5fc5\u5b9a\u83b7\u5f97\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b97\u6cd5\u903b\u8f91<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u57fa\u7840\u6982\u7387<\/strong>\uff1a\u6bcf\u6b21\u62bd\u5230\u4e94\u661f\u7684\u6982\u7387\u6052\u5b9a\u4e3a p\uff08\u5047\u8bbe\u4e3a 1.5%\uff09\u3002<\/li>\n\n\n\n<li><strong>\u786c\u4fdd\u5e95<\/strong>\uff1a\u8bb0\u5f55\u73a9\u5bb6\u7684\u672a\u51fa\u8d27\u6b21\u6570\uff08\u6c34\u4f4d\uff09\uff0c\u5f53\u6c34\u4f4d\u8fbe\u5230 89 \u6b21\u65f6\uff0c\u7b2c 90 \u6b21\u7684\u6982\u7387\u5f3a\u5236\u63d0\u5347\u4e3a 100%\u3002\u51fa\u8d27\u540e\u6c34\u4f4d\u6e05\u96f6\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f18\u7f3a\u70b9\u4e0e\u590d\u6742\u5ea6<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u89c4\u5219\u6781\u5ea6\u900f\u660e\uff0c\u4ee3\u7801\u5b9e\u73b0\u975e\u5e38\u7b80\u5355\u3002\u73a9\u5bb6\u4e00\u773c\u5c31\u80fd\u7b97\u6e05\u695a\u81ea\u5df1\u7684\u671f\u671b\u6295\u5165\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\u65b9\u5dee\u6781\u5927\uff0c\u4f53\u9a8c\u65ad\u5c42\u4e25\u91cd\u3002\u5927\u90e8\u5206\u73a9\u5bb6\u53ea\u80fd\u5728\u56fa\u5b9a\u6982\u7387\u4e0b\u201c\u62fc\u8138\u201d\uff0c\u5982\u679c\u5728\u7b2c80\u591a\u62bd\u624d\u51fa\u8d27\uff0c\u73a9\u5bb6\u4f1a\u4ea7\u751f\u5f3a\u70c8\u7684\u201c\u4e8f\u672c\u201d\u611f\uff08\u56e0\u4e3a\u79bb\u4fdd\u5e95\u592a\u8fd1\u4e86\u5374\u6ca1\u5403\u5230\u5e95\uff09\u3002<\/li>\n\n\n\n<li><strong>\u590d\u6742\u5ea6<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(1)\uff0c\u6bcf\u6b21\u62bd\u5361\u53ea\u9700\u4e00\u6b21\u968f\u673a\u6570\u751f\u6210\u3002<\/li>\n\n\n\n<li>\u7a7a\u95f4\u590d\u6742\u5ea6\uff1a$O(1)\uff0c\u53ea\u9700\u4e3a\u6bcf\u4e2a\u73a9\u5bb6\u7ef4\u62a4\u4e00\u4e2a\u6574\u578b\u7684 <code>pullCount<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcbb Java \u6838\u5fc3\u5b9e\u73b0<\/h3>\n\n\n\n<p>Java<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.Random;\n\npublic class FixedProbabilityGacha {\n    private static final double BASE_RATE_5_STAR = 0.015;\n    private static final int HARD_PITY = 90;\n\n    private int pullCount = 0;\n    private Random random = new Random();\n\n    public String draw() {\n        pullCount++;\n        if (pullCount >= HARD_PITY) {\n            pullCount = 0;\n            return \"5\u661f (\u4fdd\u5e95)\";\n        }\n\n        if (random.nextDouble() &lt; BASE_RATE_5_STAR) {\n            pullCount = 0;\n            return \"5\u661f\";\n        }\n        return \"3\/4\u661f\";\n    }\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">02. \u73b0\u4ee3\u4e8c\u6e38\u6807\u6746\uff1a\u8f6f\u4fdd\u5e95 + \u5927\u5c0f\u4fdd\u5e95\u53cc\u8f68\u5236<\/h2>\n\n\n\n<p>\u8fd9\u662f\u76ee\u524d\u5934\u90e8\u4e8c\u6b21\u5143\u6e38\u620f\uff08\u5982\u300a\u539f\u795e\u300b\u3001\u300a\u5d29\u574f\uff1a\u661f\u7a79\u94c1\u9053\u300b\u7b49\uff09\u91c7\u7528\u7684\u6210\u719f\u7b97\u6cd5\u3002\u5b83\u4e0d\u4ec5\u662f\u6570\u503c\u8bbe\u8ba1\u7684\u6770\u4f5c\uff0c\u66f4\u662f\u5fc3\u7406\u5b66\u5728\u6e38\u620f\u4e2d\u7684\u5b8c\u7f8e\u5e94\u7528\u3002\u5b83\u5de7\u5999\u5730\u5229\u7528\u4e86\u201c\u4f2a\u671f\u671b\u201d\u6765\u5e73\u6ed1\u73a9\u5bb6\u7684\u62bd\u5361\u4f53\u9a8c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b97\u6cd5\u903b\u8f91<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u57fa\u7840\u6982\u7387<\/strong>\uff1a\u4e94\u661f 0.6%\uff0c\u56db\u661f 5.1%\uff0c\u4e09\u661f\u7ea6 94.3%\u3002<\/li>\n\n\n\n<li><strong>\u8f6f\u4fdd\u5e95\uff08\u9012\u589e\u6982\u7387\uff09<\/strong>\uff1a\u524d 73 \u62bd\u4e94\u661f\u6982\u7387\u6052\u5b9a\u4e3a 0.6%\u3002\u4ece\u7b2c 74 \u62bd\u5f00\u59cb\uff0c\u6bcf\u6b21\u672a\u547d\u4e2d\u4e94\u661f\uff0c\u6982\u7387\u589e\u52a0 6%\uff08\u7b2c74\u62bd6.6%\uff0c\u7b2c75\u62bd12.6%&#8230;\uff09\uff0c\u76f4\u5230\u7b2c 90 \u62bd\u8fbe\u5230 100%\u3002<\/li>\n\n\n\n<li><strong>\u5927\u5c0f\u4fdd\u5e95\uff0850\/50\u673a\u5236\uff09<\/strong>\uff1a\u62bd\u5230\u4e94\u661f\u65f6\uff0c\u6709 50% \u6982\u7387\u662f\u5f53\u671f UP \u89d2\u8272\uff08\u5c0f\u4fdd\u5e95\uff09\u3002\u5982\u679c\u6b6a\u4e86\uff08\u4e0d\u662fUP\uff09\uff0c\u5219\u4e0b\u4e00\u6b21\u62bd\u5230\u7684\u4e94\u661f\u5fc5\u5b9a\u662f UP \u89d2\u8272\uff08\u5927\u4fdd\u5e95\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f18\u7f3a\u70b9\u4e0e\u590d\u6742\u5ea6<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u6781\u4f73\u7684\u5fc3\u7406\u9884\u671f\u7ba1\u7406\u3002\u7edd\u5927\u90e8\u5206\u73a9\u5bb6\u4f1a\u5728 75-80 \u62bd\u4e4b\u95f4\u51fa\u8d27\uff0c\u6781\u5c11\u6709\u4eba\u771f\u6b63\u8fbe\u5230 90 \u62bd\u3002\u8fd9\u4f1a\u7ed9\u73a9\u5bb6\u4e00\u79cd\u201c\u6211\u8fd0\u6c14\u8fd8\u4e0d\u9519\uff0c\u6ca1\u5403\u6ee1\u4fdd\u5e95\u201d\u7684\u9519\u89c9\u3002\u540c\u65f6\uff0c\u5927\u5c0f\u4fdd\u5e95\u673a\u5236\u8ba9\u73a9\u5bb6\u7684\u6c2a\u91d1\u4e0a\u9650\u53d8\u5f97\u7edd\u5bf9\u53ef\u63a7\uff08\u6700\u591a180\u62bd\uff09\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\u7efc\u5408\u51fa\u8d27\u671f\u671b\uff08\u7ea662\u62bd\uff09\u8fdc\u4f4e\u4e8e\u9762\u677f\u663e\u793a\u7684 90 \u62bd\uff0c\u6e38\u620f\u516c\u53f8\u5728\u6570\u503c\u8bbe\u8ba1\u65f6\u5fc5\u987b\u6309\u7167 62 \u62bd\u7684\u6a21\u578b\u53bb\u89c4\u5212\u6295\u653e\u3002\u4ee3\u7801\u72b6\u6001\u7ba1\u7406\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u540c\u65f6\u8ffd\u8e2a\u201c\u62bd\u5361\u6b21\u6570\u201d\u548c\u201c\u5927\u4fdd\u5e95\u72b6\u6001\u201d\u3002<\/li>\n\n\n\n<li><strong>\u590d\u6742\u5ea6<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(1)\u3002<\/li>\n\n\n\n<li>\u7a7a\u95f4\u590d\u6742\u5ea6\uff1aO(1)\uff0c\u9700\u8981\u7ef4\u62a4 <code>pullCount<\/code> \u548c\u4e00\u4e2a\u5e03\u5c14\u503c <code>isNextGuaranteedUp<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcbb Java \u6838\u5fc3\u5b9e\u73b0<\/h3>\n\n\n\n<p>Java<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.concurrent.ThreadLocalRandom;\n\npublic class SoftPityGacha {\n    private static final double BASE_5_STAR = 0.006;\n    private static final double BASE_4_STAR = 0.051;\n    private static final int SOFT_PITY_START = 74;\n    private static final int HARD_PITY = 90;\n\n    private int pullCount = 0;\n    private boolean isNextGuaranteedUp = false;\n\n    public String draw() {\n        pullCount++;\n\n        double current5StarRate = BASE_5_STAR;\n        if (pullCount >= SOFT_PITY_START) {\n            current5StarRate += (pullCount - 73) * 0.06;\n        }\n\n        if (pullCount >= HARD_PITY) {\n            current5StarRate = 1.0;\n        } else {\n            current5StarRate = Math.min(1.0, current5StarRate);\n        }\n\n        double roll = ThreadLocalRandom.current().nextDouble();\n\n        if (roll &lt; current5StarRate) {\n            pullCount = 0;\n\n            if (isNextGuaranteedUp) {\n                isNextGuaranteedUp = false;\n                return \"5\u661f\u5f53\u671fUP\u89d2\u8272 (\u5927\u4fdd\u5e95)\";\n            } else {\n                if (ThreadLocalRandom.current().nextDouble() &lt; 0.5) {\n                    return \"5\u661f\u5f53\u671fUP\u89d2\u8272 (\u5c0f\u4fdd\u5e95)\";\n                } else {\n                    isNextGuaranteedUp = true;\n                    return \"5\u661f\u5e38\u9a7b\u89d2\u8272 (\u5c0f\u4fdd\u5e95\u6b6a\u4e86)\";\n                }\n            }\n        }\n\n        if (ThreadLocalRandom.current().nextDouble() &lt; BASE_4_STAR) {\n            return \"4\u661f\u89d2\u8272\/\u6b66\u5668\";\n        }\n\n        return \"3\u661f\u6b66\u5668\";\n    }\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">03. \u7edd\u5bf9\u7684\u5e73\u6ed1\uff1aPRD (\u4f2a\u968f\u673a\u5206\u5e03) \u4e0e\u6c34\u4f4d\u7ebf\u52a8\u6001\u6743\u91cd<\/h2>\n\n\n\n<p>PRD\uff08Pseudo-Random Distribution\uff09\u6700\u65e9\u5728\u300a\u9b54\u517d\u4e89\u97383\u300b\u548c\u300aDota\u300b\u7684\u66b4\u51fb\u673a\u5236\u4e2d\u53d1\u626c\u5149\u5927\uff0c\u540e\u6765\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u9700\u8981\u7edd\u5bf9\u5e73\u8861\u201c\u6b27\u7687\u201d\u548c\u201c\u975e\u914b\u201d\u7684\u6389\u843d\u4e0e\u62bd\u5361\u7cfb\u7edf\u4e2d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b97\u6cd5\u903b\u8f91<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PRD\u7b97\u6cd5<\/strong>\uff1a\u8fd9\u91cc\u5e76\u4e0d\u5b58\u5728\u4e00\u4e2a\u9759\u6001\u7684\u6982\u7387\u3002\u5047\u8bbe\u8bbe\u5b9a\u7684\u671f\u671b\u6982\u7387\u4e3a P\uff0c\u7cfb\u7edf\u4f1a\u8ba1\u7b97\u51fa\u4e00\u4e2a\u57fa\u7840\u5e38\u6570 C\u3002\u7b2c\u4e00\u6b21\u62bd\u53d6\u7684\u6982\u7387\u662f C\uff0c\u5982\u679c\u5931\u8d25\uff0c\u7b2c\u4e8c\u6b21\u662f 2C\uff0c\u7b2c\u4e09\u6b21\u662f 3C\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002\u4e00\u65e6\u6210\u529f\uff0c\u6982\u7387\u91cd\u7f6e\u56de C\u3002<\/li>\n\n\n\n<li><strong>\u52a8\u6001\u6743\u91cd\uff08\u6c34\u4f4d\u7ebf\uff09<\/strong>\uff1a\u5e38\u7528\u4e8e\u591a\u7269\u54c1\u6c60\u3002\u6bcf\u4e2a\u7269\u54c1\u6709\u4e00\u4e2a\u521d\u59cb\u6743\u91cd\u3002\u6bcf\u6b21\u62bd\u5361\u540e\uff0c\u672a\u62bd\u4e2d\u7269\u54c1\u7684\u6743\u91cd\u4f1a\u52a0\u4e0a\u4e00\u4e2a\u201c\u6c34\u4f4d\u589e\u91cf\u201d\uff0c\u62bd\u4e2d\u7269\u54c1\u7684\u6743\u91cd\u91cd\u7f6e\u3002\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u73a9\u5bb6\u5728\u957f\u65f6\u95f4\u5185\uff0c\u5404\u9879\u7269\u54c1\u7684\u83b7\u53d6\u6bd4\u4f8b\u8d8b\u4e8e\u5b8c\u7f8e\u5e73\u8861\uff0c\u907f\u514d\u201c\u4e00\u76f4\u7f3a\u67d0\u4e00\u4e2a\u7279\u5b9a\u6750\u6599\u201d\u7684\u73b0\u8c61\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f18\u7f3a\u70b9\u4e0e\u590d\u6742\u5ea6<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u524a\u5cf0\u586b\u8c37\uff0c\u5f7b\u5e95\u6d88\u706d\u6781\u7aef\u6982\u7387\u3002\u73a9\u5bb6\u4e0d\u53ef\u80fd\u8fde\u7eed\u591a\u6b21\u51fa\u8d27\uff08\u56e0\u4e3a\u51fa\u8d27\u540e\u6982\u7387 C \u6781\u4f4e\uff09\uff0c\u4e5f\u4e0d\u53ef\u80fd\u6c38\u8fdc\u4e0d\u51fa\u8d27\uff08\u6982\u7387\u4f1a\u7ebf\u6027\u53e0\u52a0\u5230 100%\uff09\u3002\u975e\u5e38\u9002\u5408\u7ade\u6280\u6e38\u620f\u6389\u843d\u6216\u5361\u724c\u6e38\u620f\u7684\u88c5\u5907\u8bcd\u6761\u6d17\u7ec3\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\u5e38\u6570 C \u7684\u9006\u5411\u6c42\u89e3\u975e\u5e38\u590d\u6742\uff08\u901a\u5e38\u9700\u8981\u67e5\u8868\u6216\u8dd1\u6570\u5341\u4e07\u6b21\u6a21\u62df\u6765\u786e\u5b9a C \u548c\u76ee\u6807\u671f\u671b P \u7684\u5bf9\u5e94\u5173\u7cfb\uff09\u3002\u4e14\u73a9\u5bb6\u65e0\u6cd5\u76f4\u89c2\u611f\u77e5\u5230\u201c\u4fdd\u5e95\u201d\u7684\u5b58\u5728\uff0c\u7f3a\u4e4f\u4e8c\u6e38\u90a3\u79cd\u201c\u518d\u62bd\u51e0\u53d1\u5fc5\u51fa\u201d\u7684\u523a\u6fc0\u611f\u3002<\/li>\n\n\n\n<li><strong>\u590d\u6742\u5ea6<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u65f6\u95f4\u590d\u6742\u5ea6\uff1aPRD\u4e3a O(1)\uff1b\u52a8\u6001\u6743\u91cd\u82e5\u6c60\u5b50\u6709 N \u4e2a\u7269\u54c1\uff0c\u5219\u4e3a O(N)\uff08\u9700\u8981\u904d\u5386\u66f4\u65b0\u6240\u6709\u672a\u547d\u4e2d\u7269\u54c1\u7684\u6743\u91cd\uff09\u3002<\/li>\n\n\n\n<li>\u7a7a\u95f4\u590d\u6742\u5ea6\uff1aPRD\u4e3a O(1)\uff1b\u52a8\u6001\u6743\u91cd\u4e3a O(N)\uff08\u9700\u8981\u5b58\u50a8\u6bcf\u4e2a\u7269\u54c1\u7684\u5f53\u524d\u6743\u91cd\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcbb Java \u6838\u5fc3\u5b9e\u73b0 (PRD)<\/h3>\n\n\n\n<p>Java<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.concurrent.ThreadLocalRandom;\n\npublic class PRDGacha {\n    private static final double PRD_C = 0.0557;\n    private int failCount = 0;\n\n    public String draw() {\n        failCount++;\n\n        double currentProb = failCount * PRD_C;\n\n        if (currentProb >= 1.0 || ThreadLocalRandom.current().nextDouble() &lt; currentProb) {\n            failCount = 0;\n            return \"\u7a00\u6709\u7269\u54c1\u51fa\u8d27 (PRD\u89e6\u53d1)\";\n        }\n\n        return \"\u666e\u901a\u7269\u54c1\";\n    }\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ed3\u8bed\uff1a\u5f00\u53d1\u8005\u8be5\u600e\u4e48\u9009\uff1f<\/h2>\n\n\n\n<p>\u62bd\u5361\u7b97\u6cd5\u6ca1\u6709\u7edd\u5bf9\u7684\u4f18\u52a3\uff0c\u53ea\u6709\u6700\u9002\u5408\u5f53\u524d\u6e38\u620f\u5546\u4e1a\u6a21\u5f0f\u7684\u9009\u62e9\uff1a<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u5982\u679c\u4f60\u5728\u505a\u4e00\u6b3e<strong>\u8f7b\u5ea6\/\u590d\u53e4\u6e38\u620f<\/strong>\uff0c\u5f00\u53d1\u8d44\u6e90\u6709\u9650\uff0c\u65b9\u6cd5\u4e00\uff08\u56fa\u5b9a+\u786c\u4fdd\u5e95\uff09\u8db3\u4ee5\u5e94\u5bf9\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u5728\u505a\u4e00\u6b3e<strong>\u91cd\u5ea6\u5546\u4e1a\u5316\u4e8c\u6b21\u5143\u6e38\u620f<\/strong>\uff0c\u9700\u8981\u523a\u6fc0\u73a9\u5bb6\u6d88\u8d39\u5e76\u4fdd\u8bc1\u7559\u5b58\uff0c\u65b9\u6cd5\u4e8c\uff08\u8f6f\u4fdd\u5e95+50\/50\uff09\u662f\u7ecf\u8fc7\u5e02\u573a\u9a8c\u8bc1\u7684\u6700\u4f18\u89e3\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u5728\u505a<strong>\u7ade\u6280\u7c7b\u6e38\u620f\u6216\u662f\u8d44\u6e90\u6389\u843d\u7cfb\u7edf<\/strong>\uff0c\u9700\u8981\u4fdd\u8bc1\u957f\u7ebf\u4f53\u9a8c\u7684\u7edd\u5bf9\u516c\u5e73\uff0c\u65b9\u6cd5\u4e09\uff08PRD\uff09\u662f\u4f60\u7684\u4e0d\u4e8c\u4e4b\u9009\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e0b\u6b21\u5f53\u4f60\u518d\u5728\u6e38\u620f\u4e2d\u8fde\u62bd\u201c\u6c89\u8239\u201d\u6216\u8005\u5355\u62bd\u201c\u51fa\u5947\u8ff9\u201d\u7684\u65f6\u5019\uff0c\u4e0d\u59a8\u60f3\u4e00\u60f3\uff0c\u4f60\u7684\u8fd0\u6c14\u80cc\u540e\uff0c\u8dd1\u7684\u662f\u54ea\u4e00\u6bb5\u4ee3\u7801\u5462\uff1f<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u6e38\u620f\u5f00\u53d1\u4e2d\uff0c\u62bd\u5361\uff08Gacha\uff09\u7cfb\u7edf\u53ef\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u968f\u673a\u6570\u751f\u6210\u5668\u3002\u5b83\u662f\u6838\u5fc3\u7684\u5546\u4e1a\u5316\u53d8\u73b0\u624b\u6bb5\uff0c\u66f4\u662f\u63a7\u5236\u6e38\u620f\u7ecf &hellip; <a href=\"https:\/\/www.orangejam.asia\/index.php\/2026\/05\/02\/%e6%8f%ad%e7%a7%98%e6%b8%b8%e6%88%8f%e6%8a%bd%e5%8d%a1%e8%83%8c%e5%90%8e%e7%9a%84%e6%95%b0%e5%ad%a6%e9%ad%94%e6%b3%95%ef%bc%9a%e4%bb%8e%e5%9b%ba%e5%ae%9a%e6%a6%82%e7%8e%87%e5%88%b0%e5%8a%a8%e6%80%81\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u63ed\u79d8\u6e38\u620f\u62bd\u5361\u80cc\u540e\u7684\u6570\u5b66\u9b54\u6cd5\uff1a\u4ece\u56fa\u5b9a\u6982\u7387\u5230\u52a8\u6001\u6743\u91cd\u7684\u7b97\u6cd5\u6f14\u8fdb\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-44","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/posts\/44","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/comments?post=44"}],"version-history":[{"count":1,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/posts\/44\/revisions"}],"predecessor-version":[{"id":46,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/posts\/44\/revisions\/46"}],"wp:attachment":[{"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/media?parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/categories?post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orangejam.asia\/index.php\/wp-json\/wp\/v2\/tags?post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}