{"id":31376,"date":"2023-08-22T19:57:40","date_gmt":"2023-03-12T01:04:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e7%bc%96%e7%a8%8b%e7%ab%9e%e8%b5%9b%e3%80%91java\/"},"modified":"2025-08-12T23:43:31","modified_gmt":"2025-08-12T15:43:31","slug":"%e3%80%90%e7%bc%96%e7%a8%8b%e7%ab%9e%e8%b5%9b%e3%80%91java","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e7%bc%96%e7%a8%8b%e7%ab%9e%e8%b5%9b%e3%80%91java\/","title":{"rendered":"\u3010\u7f16\u7a0b\u7ade\u8d5b\u3011JAVA"},"content":{"rendered":"

\u7531\u4e8e\u7b2c\u4e00\u6b21\u53c2\u52a0AtCoder\u6bd4\u8d5b\u65f6\u8868\u73b0\u4e0d\u4f73\uff0c\u6240\u4ee5\u4e3a\u4e86\u51c6\u5907\u4e0b\u4e00\u6b21\u6bd4\u8d5b\uff0c\u6211\u6574\u7406\u4e86\u4e00\u4e9b\u4f3c\u4e4e\u5fc5\u8981\u7684\u77e5\u8bc6\uff0c\u5e76\u4f1a\u968f\u65f6\u8fdb\u884c\u8865\u5145\u3002<\/p>\n

\u83b7\u53d6\u6807\u51c6\u8f93\u5165<\/h2>\n

\u5982\u679c\u6ca1\u6709\u8fd9\u4e2a\uff0c\u4ec0\u4e48\u90fd\u4e0d\u80fd\u505a\u3002<\/p>\n

import java.util.Scanner;\r\n\r\npublic class Main {\r\n    public static void main(String[] args) {\r\n        Scanner sc = new Scanner(System.in);\r\n\u3000\u3000\u3000\u3000\/\/\u6a19\u6e96\u51fa\u529b\u306e1\u884c\u76ee\u53d6\u5f97\r\n        String first_row = sc.next();\r\n\u3000\u3000\u3000\u3000\/\/\u6a19\u6e96\u51fa\u529b\u306e2\u884c\u76ee\u53d6\u5f97\r\n        String second_row = sc.next();\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u5c06\u6587\u672c\u578b\u8f6c\u6362\u4e3a\u6570\u503c\u578b<\/h2>\n
\u5982\u679c\u60f3\u8981\u5c06\u6807\u51c6\u8f93\u51fa\u7528\u4f5c\u6570\u5b57\u65f6\u4f7f\u7528<\/p>\n
import java.util.Scanner;\r\n\r\npublic class Main {\r\n    public static void main(String[] args) {\r\n        Scanner sc = new Scanner(System.in);\r\n\u3000\u3000\u3000\u3000\/\/\u6a19\u6e96\u51fa\u529b\u306e1\u884c\u76ee\u53d6\u5f97\r\n        String first_row = sc.next();\r\n\u3000\u3000\u3000\u3000\/\/\u6574\u6570\u306b\u5909\u63db\r\n        Integer num = Integer.parseInt(first_row);\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u83b7\u53d6\u7b2cn\u4e2a\u5b57\u7b26\u7684\u6587\u672c<\/h2>\n
\u6211\u89c9\u5f97\u7528charAt\u53ef\u80fd\u66f4\u597d\uff0c\u4f46\u662f\u51fa\u73b0\u4e86\u9519\u8bef\u65e0\u6cd5\u4f7f\u7528\uff0c\u6240\u4ee5\u6211\u7528substring\u4ee3\u66ff\u4e86\u3002
\n\uff08\u6211\u60f3\u8bf7\u6559\u4e00\u4e0b\u600e\u4e48\u4f7f\u7528charAt\u3002\uff09<\/p>\n
String test = \"ABCDEFGHIJKLMNOPQRST\";\r\n\/\/substring(k,n)\u3067\u6587\u5b57\u306ek+1\u304b\u3089n+1\u756a\u76ee\u307e\u3067\u306e\u6587\u5b57\u3092\u53d6\u5f97\u3067\u304d\u308b\u3002\r\n\/\/substring(k-1,k)\u3067k\u756a\u76ee\u306e\u6587\u5b57\u3092\u53d6\u5f97\u3067\u304d\u308b\u3002\r\nString val = test.substring(2,3);\r\n<\/code><\/pre>\n
\u8bf7\u53cd\u7701\u4e00\u4e0b<\/h2>\n
\u7b2c\u4e00\u6b21\u53c2\u52a0\u7f16\u7a0b\u7ade\u8d5b\u7684\u7ed3\u679c\u662f0\u5206…
\n\u539f\u56e0\u662f\u6211\u5c1d\u8bd5\u89e3\u51b3\u4e86\u6211\u611f\u89c9\u80fd\u89e3\u51b3\u7684\u95ee\u9898\uff0c\u4f46\u662f\u6211\u7f16\u5199\u7684\u7a0b\u5e8f\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u4e86\u9650\u5236\uff0c\u6240\u4ee5\u65e0\u6cd5\u5f97\u5206\u3002<\/p>\n
\u5728\u53cd\u7701\u7684\u89d2\u5ea6\u4e0a\uff0c
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\n\u5e94\u8be5\u9884\u5148\u51c6\u5907\u597d\u7f16\u8f91\u73af\u5883\u3002<\/p>\n
\u6211\u660e\u767d\u4e86\u7684\u4e8b\u60c5<\/h2>\n
\u30fb\u5982\u679c\u5728\u5d4c\u5957\u4e2d\u4f7f\u7528\u4e24\u6b21\u4ee5\u4e0a\u7684for\u5faa\u73af\u6216while\u5faa\u73af\uff0c\u53ef\u80fd\u4f1a\u8d85\u8fc7\u6267\u884c\u65f6\u95f4\u3002
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\n\u30fb\u5373\u4f7f\u662f\u770b\u8d77\u6765\u7b80\u5355\u7684\u95ee\u9898\uff0c\u5982\u679c\u8981\u907f\u514d\u8d85\u8fc7\u6267\u884c\u65f6\u95f4\u9650\u5236\uff0c\u6709\u65f6\u9700\u8981\u627e\u5230\u89c4\u5f8b\u3002<\/p>\n
\u8bf7\u53c2\u9605\u4ee5\u4e0b\u6587\u7ae0<\/h2>\n
\u83b7\u53d6\u7b2cn\u4e2a\u5b57\u7b26<\/p>\n","protected":false},"excerpt":{"rendered":"
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