{"id":66740,"date":"2025-05-03T10:55:36","date_gmt":"2025-05-03T02:55:36","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66740\/"},"modified":"2025-05-03T10:55:36","modified_gmt":"2025-05-03T02:55:36","slug":"java%e6%80%8e%e4%b9%88%e5%90%91%e6%95%b0%e7%bb%84%e8%be%93%e5%85%a5%e4%b8%80%e4%b8%aa%e7%a9%ba%e6%a0%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66740\/","title":{"rendered":"java\u600e\u4e48\u5411\u6570\u7ec4\u8f93\u5165\u4e00\u4e2a\u7a7a\u683c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c\uff1a\u76f4\u63a5\u8d4b\u503c\u6307\u5b9a\u7d22\u5f15\u4f4d\u7f6e\uff08char[index] = &#8216; &#8216;\uff09\u4ece\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\uff08str.tochararray()\uff09\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u586b\u5145\u6307\u5b9a\u8303\u56f4\uff08arrays.fill(chars, index, index + 1, &#8216; &#8216;)\uff09\u4f7f\u7528 stringbuilder \u6784\u5efa\u5b57\u7b26\u4e32\uff08builder.append(&#8216; &#8216;\uff09\u548c builder.tostring().tochararray()\uff09\u6dfb\u52a0\u4e0d\u53ef\u89c1\u7a7a\u683c\uff08 \u5236\u8868\u7b26\uff0c \u6362\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111621075796399.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5411\u6570\u7ec4\u8f93\u5165\u4e00\u4e2a\u7a7a\u683c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5411\u6570\u7ec4\u8f93\u5165\u4e00\u4e2a\u7a7a\u683c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u5411\u5b57\u7b26\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n<p><strong>\u4f7f\u7528\u5b57\u7b26\u6570\u7ec4<\/strong><\/p>\n<pre>char[] chars = new char[10];\nchars[index] = ' '; \/\/ \u5c06\u7a7a\u683c\u5b57\u7b26\u6dfb\u52a0\u5230\u7d22\u5f15\u4e3a index \u7684\u4f4d\u7f6e<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u5b57\u7b26\u4e32<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 String \u7c7b\u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f7f\u7528 toCharArray() \u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u3002<\/p>\n<pre>String str = \" \"; \/\/ \u521b\u5efa\u4e00\u4e2a\u7a7a\u683c\u5b57\u7b26\u4e32\nchar[] chars = str.toCharArray(); \/\/ \u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Arrays.fill()<\/strong><\/p>\n<p>Arrays.fill() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u5168\u90e8\u586b\u5145\u4e3a\u7279\u5b9a\u503c\u3002<\/p>\n<pre>char[] chars = new char[10];\nArrays.fill(chars, index, index + 1, ' '); \/\/ \u5c06\u7d22\u5f15\u4e3a index \u7684\u4f4d\u7f6e\u586b\u5145\u4e3a\u7a7a\u683c<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 StringBuilder<\/strong><\/p>\n<p>StringBuilder \u53ef\u4ee5\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u5411\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c\u3002<\/p>\n<pre>StringBuilder builder = new StringBuilder();\nbuilder.append(' '); \/\/ \u5c06\u7a7a\u683c\u6dfb\u52a0\u5230 StringBuilder\nchar[] chars = builder.toString().toCharArray(); \/\/ \u5c06 StringBuilder \u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5411\u6570\u7ec4\u6dfb\u52a0\u4e0d\u53ef\u89c1\u7a7a\u683c<\/strong><\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u5411\u6570\u7ec4\u6dfb\u52a0\u4e0d\u53ef\u89c1\u7a7a\u683c\uff08\u4f8b\u5982\u5236\u8868\u7b26\u6216\u6362\u884c\u7b26\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5b57\u7b26\uff1a<\/p>\n<ul>\n<li>\u5236\u8868\u7b26\uff1a <\/li>\n<li>\u6362\u884c\u7b26\uff1a <\/li>\n<li>\u56de\u8f66\u7b26\uff1a <\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5411\u6570\u7ec4\u8f93\u5165\u4e00\u4e2a\u7a7a\u683c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c\uff1a\u76f4\u63a5\u8d4b\u503c\u6307\u5b9a\u7d22\u5f15\u4f4d\u7f6e\uff08char[index] = &#8216; &#8216;\uff09\u4ece\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\uff08str.tochararray()\uff09\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u586b\u5145\u6307\u5b9a\u8303\u56f4\uff08arrays.fill(chars, index, index + 1, &#8216; &#8216;)\uff09\u4f7f\u7528 stringbuilder \u6784\u5efa\u5b57\u7b26\u4e32\uff08builder.append(&#8216; &#8216;\uff09\u548c builder.tostring().tochararray()\uff09\u6dfb\u52a0\u4e0d\u53ef\u89c1\u7a7a\u683c\uff08 \u5236\u8868\u7b26\uff0c \u6362 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c \u5728 Java \u4e2d\uff0c\u5411\u5b57\u7b26\u6570\u7ec4\u6dfb\u52a0\u7a7a\u683c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a \u4f7f\u7528\u5b57\u7b26\u6570\u7ec4 char[] chars = new char[10]; chars[index] = &#8216; &#8216;; \/\/ \u5c06\u7a7a\u683c\u5b57\u7b26\u6dfb\u52a0\u5230\u7d22\u5f15\u4e3a index \u7684\u4f4d\u7f6e \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5b57\u7b26\u4e32 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53ef\u4ee5\u4f7f\u7528 String \u7c7b\u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f7f\u7528 toCharArray() \u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u3002 String str = &#8221; &#8220;; \/\/ \u521b\u5efa\u4e00\u4e2a\u7a7a\u683c\u5b57\u7b26\u4e32 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66740","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66740"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66740\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}