{"id":31457,"date":"2022-08-03T17:35:04","date_gmt":"2023-01-06T11:56:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8stringbuilder\/"},"modified":"2024-01-15T06:45:10","modified_gmt":"2024-01-14T22:45:10","slug":"%e3%80%90java%e3%80%91%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8stringbuilder","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8stringbuilder\/","title":{"rendered":"\u3010Java\u3011\u5982\u4f55\u4f7f\u7528StringBuilder"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528StringBuilder\u8fde\u63a5\u4e24\u4e2a\u6216\u66f4\u591a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002<\/p>\n

\u4f7f\u7528”+”\u8fd0\u7b97\u7b26\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5\u7684\u95ee\u9898<\/h1>\n

\u5728\u6587\u5b57\u4e32\u7d50\u5408\u4e2d\uff0c\u6700\u7c21\u55ae\u7684\u65b9\u6cd5\u662f\u4f7f\u7528+\u904b\u7b97\u7b26\uff0c\u4f46\u5b58\u5728\u4ee5\u4e0b\u554f\u984c\uff1a
\n– String\u5be6\u4f8b\u662f\u4e0d\u53ef\u8b8a\u7684\uff08\u7121\u6cd5\u66f4\u6539\u503c\uff09
\n– \u901a\u904e+\u9032\u884c\u4e32\u806f\u6642\uff0c\u820a\u5be6\u4f8b\u88ab\u4e1f\u68c4\uff0c\u4e26\u901a\u904enew\u751f\u6210\u65b0\u5be6\u4f8b
\n– \u5982\u679c\u8981\u9023\u63a5\u5927\u91cf\u7684\u5b57\u7b26\u4e32\uff0c\u5c07\u7d66JVM\u5e36\u4f86\u5f88\u5927\u7684\u8ca0\u64d4<\/p>\n

\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u5de5\u5177\u662fStringBuilder\u3002<\/p>\n

\u5199\u4f5c\u65b9\u5f0f<\/h1>\n

StringBuilder\u88ab\u8bbe\u8ba1\u4e3a\u53ef\u53d8\u7c7b\uff0c\u56e0\u6b64\u53ef\u4ee5\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5\u800c\u65e0\u9700\u4f7f\u7528new\u5173\u952e\u5b57\u3002
\n\u8fd9\u6837\u53ef\u4ee5\u51cf\u8f7bJVM\u7684\u8d1f\u62c5\u5e76\u52a0\u5feb\u5904\u7406\u901f\u5ea6\u3002<\/p>\n

\u901a\u5e38\u5efa\u8bae\u4f7f\u7528toString\u65b9\u6cd5\u4ece\u5b57\u7b26\u4e32\u6784\u5efa\u5668\u4e2d\u83b7\u53d6\u5b57\u7b26\u4e32\u3002<\/p>\n

StringBuilder<\/span> sb<\/span> =<\/span> new<\/span> StringBuilder<\/span>();<\/span>\r\n\r\nsb<\/span>.<\/span>append<\/span>(<\/span>\"Hello \"<\/span>);<\/span>\r\nsb<\/span>.<\/span>append<\/span>(<\/span>\"Qiita!\"<\/span>);<\/span>\r\n\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sb<\/span>.<\/span>toString<\/span>());<\/span>  \/\/Hello Qiita!<\/span>\r\n<\/code><\/pre>\n
\u6839\u636e<\/h1>\n
Java\u5e73\u53f0SE8\u7684StringBuilder<\/p>\n","protected":false},"excerpt":{"rendered":"
\u9996\u5148 \u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528StringBuilder\u8fde\u63a5\u4e24\u4e2a\u6216\u66f4\u591a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002 \u4f7f\u7528”+” […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31457","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u3010Java\u3011\u5982\u4f55\u4f7f\u7528StringBuilder - 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\u5982\u4f55\u4f7f\u7528stringbuilder\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u3011\u5982\u4f55\u4f7f\u7528StringBuilder\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528StringBuilder\u8fde\u63a5\u4e24\u4e2a\u6216\u66f4\u591a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002 \u4f7f\u7528”+” […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010java\u3011\u5982\u4f55\u4f7f\u7528stringbuilder\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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