{"id":31487,"date":"2022-09-14T03:29:17","date_gmt":"2023-05-24T17:56:25","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e9%9a%8f%e6%9c%ba%e6%96%b9%e6%b3%95\/"},"modified":"2024-01-15T06:46:10","modified_gmt":"2024-01-14T22:46:10","slug":"%e3%80%90java%e3%80%91%e9%9a%8f%e6%9c%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e9%9a%8f%e6%9c%ba%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u3010Java\u3011\u968f\u673a\u65b9\u6cd5"},"content":{"rendered":"

\u5728Java\u4e2d\uff0c\u6709\u4e24\u4e2a\u5df2\u7ecf\u51c6\u5907\u597d\u7684\u7c7b\uff0c\u5206\u522b\u662fjava.util.Random\u548cjava.lang.Math\u3002<\/p>\n

\u8fd9\u6b21\u6211\u4eec\u5c06\u5bf9Math\u7c7b\uff08java.lang.Math\uff09\u7684\u968f\u673a\u65b9\u6cd5\u8fdb\u884c\u7b80\u5355\u7684\u89e3\u91ca\u3002
\nMath.random()
\n\u8981\u70b9\uff1a
\n– \u8fd4\u56de\u503c\u7c7b\u578b\u662fdouble
\n– \u83b7\u53d6\u7684\u968f\u673a\u6570\u8303\u56f4\u662f0.0\u52301.0\u4e4b\u95f4\uff08\u4e0d\u5305\u62ec1.0\uff09<\/p>\n

\u4f8b
\n\u2460\u968f\u673a\u6570rand\u7684\u503c\u4e3aMath.random()\uff1b
\n\u2461\u968f\u673a\u6570rand\u7684\u503c\u4e3aMath.random()\u4e58\u4ee510\uff1b
\n\u2462\u968f\u673a\u6570rand\u7684\u503c\u4e3a\u5c06Math.random()\u4e58\u4ee510\u518d\u8f6c\u4e3a\u6574\u578b\uff1b<\/p>\n

(1) \u7531\u4e8e\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u662fdouble\uff0c\u6240\u4ee5\u53d8\u91cf\u7684\u7c7b\u578b\u57fa\u672c\u4e0a\u5fc5\u987b\u662fdouble\uff0c\u5426\u5219\u4f1a\u51fa\u73b0\u7f16\u8bd1\u9519\u8bef\u3002
\n(2) \u5982\u679c\u8981\u57280.0\u523010.0\u4e4b\u95f4\u83b7\u53d6\u968f\u673a\u6570\uff0c\u5219\u5728\u968f\u673a\u51fd\u6570\u540e\u9762\u52a0\u4e0a* 10\u3002
\n(3) \u5982\u679c\u8981\u83b7\u53d6\u6574\u6570\u7c7b\u578b\u7684\u968f\u673a\u6570\uff0c\u5219\u9700\u8981\u5c06(2)\u5f3a\u5236\u8f6c\u6362\u4e3aint\u7c7b\u578b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728Java\u4e2d\uff0c\u6709\u4e24\u4e2a\u5df2\u7ecf\u51c6\u5907\u597d\u7684\u7c7b\uff0c\u5206\u522b\u662fjava.util.Random\u548cjava.lang.Math\u3002 \u8fd9 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31487","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u3010Java\u3011\u968f\u673a\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010java\u3011\u968f\u673a\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u3011\u968f\u673a\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u5728Java\u4e2d\uff0c\u6709\u4e24\u4e2a\u5df2\u7ecf\u51c6\u5907\u597d\u7684\u7c7b\uff0c\u5206\u522b\u662fjava.util.Random\u548cjava.lang.Math\u3002 \u8fd9 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010java\u3011\u968f\u673a\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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