{"id":203553,"date":"2025-05-22T09:29:31","date_gmt":"2025-05-22T01:29:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203553\/"},"modified":"2025-05-22T09:29:31","modified_gmt":"2025-05-22T01:29:31","slug":"%e5%9c%a8%e9%94%ae%e7%9b%98%e8%be%93%e5%85%a5%e5%9c%ba%e6%99%af%e4%b8%8b%ef%bc%8cscanner%e7%b1%bb%e7%9a%84hasnext%e6%96%b9%e6%b3%95%e7%9c%9f%e7%9a%84%e5%bf%85%e8%a6%81%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203553\/","title":{"rendered":"\u5728\u952e\u76d8\u8f93\u5165\u573a\u666f\u4e0b\uff0cScanner\u7c7b\u7684hasNext()\u65b9\u6cd5\u771f\u7684\u5fc5\u8981\u5417\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5728\u952e\u76d8\u8f93\u5165\u573a\u666f\u4e0b\uff0cScanner\u7c7b\u7684hasNext()\u65b9\u6cd5\u771f\u7684\u5fc5\u8981\u5417\uff1f<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u5728\u952e\u76d8\u8f93\u5165\u573a\u666f\u4e0b\uff0cScanner\u7c7b\u7684hasNext()\u65b9\u6cd5\u771f\u7684\u5fc5\u8981\u5417\uff1f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/17313178086731d0307e621.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>java\u57fa\u7840\uff1ascanner\u7c7b\u7684hasnext()\u65b9\u6cd5\u89e3\u6790<\/strong><\/p>\n<p>\u5728java\u4e2d\uff0cscanner\u7c7b\u662f\u4e00\u4e2a\u7528\u4e8e\u4ece\u8f93\u5165\u6e90\uff08\u5982\u952e\u76d8\uff09\u8bfb\u53d6\u6570\u636e\u7684\u6709\u7528\u5de5\u5177\u3002hasnext()\u65b9\u6cd5\u7528\u4e8e\u786e\u5b9a\u8f93\u5165\u6e90\u4e2d\u662f\u5426\u8fd8\u6709\u53ef\u8bfb\u7684\u6570\u636e\u3002<\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7a0b\u5e8f\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>import java.util.Scanner;\n\nclass A {\n    public static void main(String[] args) {\n        Scanner scan = new Scanner(System.in);\n\n        \/\/ \u63a5\u6536\u7528\u6237\u8f93\u5165\n        System.out.println(\"\u8f93\u5165\u6570\u636e\uff1a\");\n        if (scan.hasNext()) {\n            String input = scan.next();\n            System.out.println(\"\u8f93\u5165\u7684\u6570\u636e\u4e3a\uff1a\" + input);\n        }\n\n        scan.close();\n    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