{"id":34615,"date":"2024-11-26T11:06:28","date_gmt":"2024-11-26T03:06:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34615\/"},"modified":"2024-11-26T11:06:28","modified_gmt":"2024-11-26T03:06:28","slug":"java%e5%ad%97%e7%ac%a6%e6%b5%81%e6%80%8e%e4%b9%88%e7%94%a8%e6%95%b0%e7%bb%84%e6%8e%a5%e6%94%b6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34615\/","title":{"rendered":"java\u5b57\u7b26\u6d41\u600e\u4e48\u7528\u6570\u7ec4\u63a5\u6536"},"content":{"rendered":"<blockquote><p>\n  \u4f7f\u7528\u6570\u7ec4\u63a5\u6536 java \u5b57\u7b26\u6d41\u5185\u5bb9\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u521b\u5efa\u5b57\u7b26\u6570\u7ec4\u3001\u4f7f\u7528 read() \u65b9\u6cd5\u8bfb\u53d6\u5b57\u7b26\u5e76\u5b58\u50a8\u5230\u6570\u7ec4\u4e2d\u3001\u91cd\u590d\u8bfb\u53d6\u76f4\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u6700\u540e\u622a\u53d6\u6709\u6548\u5b57\u7b26\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/02\/2024110217485864035.jpg\" class=\"aligncenter\" title=\"java\u5b57\u7b26\u6d41\u600e\u4e48\u7528\u6570\u7ec4\u63a5\u6536\u63d2\u56fe\" alt=\"java\u5b57\u7b26\u6d41\u600e\u4e48\u7528\u6570\u7ec4\u63a5\u6536\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u63a5\u6536 Java \u5b57\u7b26\u6d41\u5185\u5bb9<\/strong><\/p>\n<p>\u4f7f\u7528\u6570\u7ec4\u63a5\u6536 Java \u5b57\u7b26\u6d41\u5185\u5bb9\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<p><strong>1. \u521b\u5efa\u6570\u7ec4<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u6570\u7ec4\u6765\u5b58\u50a8\u5b57\u7b26\u6d41\u7684\u5185\u5bb9\u3002\u6570\u7ec4\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u9700\u8981\u63a5\u6536\u7684\u5b57\u7b26\u6570\u91cf\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>char[] buffer = new char[100];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 read() \u65b9\u6cd5<\/strong><\/p>\n<p>\u4f7f\u7528 read() \u65b9\u6cd5\u4ece\u5b57\u7b26\u6d41\u4e2d\u8bfb\u53d6\u5b57\u7b26\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u8be5\u65b9\u6cd5\u8fd4\u56de\u8bfb\u53d6\u7684\u5b57\u7b26\u6570\uff0c\u5982\u679c\u8fbe\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u5219\u8fd4\u56de -1\u3002<\/p>\n<pre>int count = reader.read(buffer);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u91cd\u590d\u8bfb\u53d6<\/strong><\/p>\n<p>\u91cd\u590d\u8c03\u7528 read() \u65b9\u6cd5\uff0c\u76f4\u5230\u8fbe\u5230\u6587\u4ef6\u672b\u5c3e\u6216\u8bfb\u53d6\u5230\u8db3\u591f\u591a\u7684\u5b57\u7b26\u3002<\/p>\n<pre>while (count != -1) {\n    \/\/ \u5904\u7406\u8bfb\u53d6\u5230\u7684\u5b57\u7b26\n    count = reader.read(buffer);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u622a\u53d6\u6709\u6548\u5b57\u7b26<\/strong><\/p>\n<p>\u7531\u4e8e read() \u65b9\u6cd5\u53ef\u80fd\u4e0d\u4f1a\u8bfb\u53d6\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5b57\u7b26\uff0c\u56e0\u6b64\u9700\u8981\u622a\u53d6\u6709\u6548\u5b57\u7b26\u3002<\/p>\n<pre>char[] validChars = new char[count];\nSystem.arraycopy(buffer, 0, validChars, 0, count);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u63a5\u6536\u5b57\u7b26\u6d41\u5185\u5bb9\uff1a<\/p>\n<pre>import java.io.BufferedReader;\nimport java.io.FileReader;\n\npublic class Main {\n    public static void main(String[] args) throws Exception {\n        \/\/ \u521b\u5efa\u5b57\u7b26\u6570\u7ec4\n        char[] buffer = new char[100];\n\n        \/\/ \u521b\u5efa\u5b57\u7b26\u6d41\n        BufferedReader reader = new BufferedReader(new FileReader(\"input.txt\"));\n\n        \/\/ \u8bfb\u53d6\u5b57\u7b26\u6d41\n        int count = reader.read(buffer);\n\n        \/\/ \u622a\u53d6\u6709\u6548\u5b57\u7b26\n        char[] validChars = new char[count];\n        System.arraycopy(buffer, 0, validChars, 0, count);\n\n        \/\/ \u8f93\u51fa\u6709\u6548\u5b57\u7b26\n        System.out.println(new String(validChars));\n\n        \/\/ \u5173\u95ed\u5b57\u7b26\u6d41\n        reader.close();\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u5b57\u7b26\u6d41\u600e\u4e48\u7528\u6570\u7ec4\u63a5\u6536\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u6570\u7ec4\u63a5\u6536 java \u5b57\u7b26\u6d41\u5185\u5bb9\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u521b\u5efa\u5b57\u7b26\u6570\u7ec4\u3001\u4f7f\u7528 read() \u65b9\u6cd5\u8bfb\u53d6\u5b57\u7b26\u5e76\u5b58\u50a8\u5230\u6570\u7ec4\u4e2d\u3001\u91cd\u590d\u8bfb\u53d6\u76f4\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u6700\u540e\u622a\u53d6\u6709\u6548\u5b57\u7b26\u3002 \u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u63a5\u6536 Java \u5b57\u7b26\u6d41\u5185\u5bb9 \u4f7f\u7528\u6570\u7ec4\u63a5\u6536 Java \u5b57\u7b26\u6d41\u5185\u5bb9\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a 1. \u521b\u5efa\u6570\u7ec4 \u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u6570\u7ec4\u6765\u5b58\u50a8\u5b57\u7b26\u6d41\u7684\u5185\u5bb9\u3002\u6570\u7ec4\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u9700\u8981\u63a5\u6536\u7684\u5b57\u7b26\u6570\u91cf\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b char[] buffer = new char[100]; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 read() \u65b9\u6cd5 \u4f7f\u7528 read() \u65b9\u6cd5\u4ece\u5b57\u7b26\u6d41\u4e2d\u8bfb\u53d6\u5b57\u7b26\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u8be5\u65b9\u6cd5\u8fd4\u56de\u8bfb\u53d6\u7684\u5b57\u7b26\u6570\uff0c\u5982\u679c\u8fbe\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u5219\u8fd4\u56de -1\u3002 int count = reader.read(buffer); \u767b\u5f55\u540e\u590d\u5236 3. \u91cd\u590d\u8bfb\u53d6 \u91cd\u590d\u8c03\u7528 read() \u65b9\u6cd5\uff0c\u76f4\u5230\u8fbe\u5230\u6587\u4ef6\u672b\u5c3e\u6216\u8bfb\u53d6\u5230\u8db3\u591f\u591a\u7684\u5b57\u7b26\u3002 while (count != -1) { \/\/ \u5904\u7406\u8bfb\u53d6\u5230\u7684\u5b57\u7b26 count = reader.read(buffer); } \u767b\u5f55\u540e\u590d\u5236 4. \u622a\u53d6\u6709\u6548\u5b57\u7b26 \u7531\u4e8e read() [&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-34615","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34615","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=34615"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34615\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}