{"id":45813,"date":"2023-12-11T15:06:54","date_gmt":"2023-12-11T07:06:54","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=45813"},"modified":"2023-12-11T15:06:54","modified_gmt":"2023-12-11T07:06:54","slug":"%e7%bb%99%e4%bd%a0%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%8c%e4%bd%a0%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e6%98%af%e4%b8%8d%e6%98%afip%e5%9c%b0%e5%9d%80%ef%bc%9f%e6%89%8b%e5%86%99%e8%bf%99","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e7%bb%99%e4%bd%a0%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%8c%e4%bd%a0%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e6%98%af%e4%b8%8d%e6%98%afip%e5%9c%b0%e5%9d%80%ef%bc%9f%e6%89%8b%e5%86%99%e8%bf%99\/","title":{"rendered":"\u7ed9\u4f60\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4f60\u600e\u4e48\u5224\u65ad\u662f\u4e0d\u662fip\u5730\u5740\uff1f\u624b\u5199\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5e76\u5199\u51fa\u6d4b\u8bd5\u7528\u4f8b"},"content":{"rendered":"

“`” \u53c2\u8003\u56de\u7b54\uff1a<\/p>\n

IP\u7684\u683c\u5f0f\uff1a(1~255).(0~255).(0~255).(0~255)<\/p>\n

\u65b9\u6cd5\u4e00\uff1a\u57fa\u4e8e\u5bf9\u5b57\u7b26\u4e32\u7684\u5904\u7406<\/p>\n

public static void main(String[] args){\nScanner scanner = new Scanner(System.in);\nString ipStr = scanner.next();\nboolean isIpLegal = isIpLegal(ipStr);\nif(isIpLegal) {\nSystem.out.println(ipStr + \"\" \u5408\u6cd5\"\");\n\n}\n\nelse{\n\nSystem.out.println(ipStr + \"\" \u975e\u6cd5\"\");\n\n}\n\n}\n\npublic static boolean isIpLegal(String str){\n\n\/\/\u68c0\u67e5ip\u662f\u5426\u4e3a\u7a7a\n\nif(str == null){\n\nreturn false;\n\n}\n\n\/\/\u68c0\u67e5ip\u957f\u5ea6\uff0c\u6700\u77ed\u4e3a\uff1ax.x.x.x(7\u4f4d)\uff0c\u6700\u957f\u4e3a\uff1axxx.xxx.xxx.xxx(15\u4f4d)\n\nif(str.length() < 7 || str.length() > 15){\n\nreturn false;\n\n}\n\n\/\/\u5bf9\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u9996\u672b\u5b57\u7b26\u5224\u65ad\uff0c\u5982\u679c\u662f\"\".\"\"\u5219\u662f\u975e\u6cd5IP\n\nif(str.charAt(0) == '.' || str.charAt(str.length()-1) == '.'){\n\nreturn false;\n\n}\n\n\/\/\u6309\"\".\"\"\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u5e76\u5224\u65ad\u5206\u5272\u51fa\u6765\u7684\u4e2a\u6570\uff0c\u5982\u679c\u4e0d\u662f4\u4e2a\uff0c\u5219\u662f\u975e\u6cd5IP\n\n    String[] arr = str.split(\"\"\\\\.\"\");\n    if(arr.length != 4){\n    return false;\n    }\n    \n    \n\/\/\u5bf9\u5206\u5272\u51fa\u6765\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e32\u8fdb\u884c\u5355\u72ec\u5224\u65ad\n\nfor(int i = 0; i < arr.length; i++){\n\n\/\/\u5982\u679c\u6bcf\u4e2a\u5b57\u7b26\u4e32\u4e0d\u662f\u4e00\u4f4d\u5b57\u7b26\uff0c\u4e14\u4ee5'0'\u5f00\u5934\uff0c\u5219\u662f\u975e\u6cd5\u7684IP\uff0c\u5982\uff1a01.002.03.004\n\nif(arr[i].length() > 1 && arr[i].charAt(0) == '0'){\n\nreturn false;\n\n}\n\/\/\u5bf9\u6bcf\u4e2a\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5b57\u7b26\u8fdb\u884c\u9010\u4e00\u5224\u65ad\uff0c\u5982\u679c\u4e0d\u662f\u6570\u5b570-9\uff0c\u5219\u662f\u975e\u6cd5\u7684IP\nfor(int j = 0; j < arr[i].length(); j++){\nif (arr[i].charAt(j) < '0' || arr[i].charAt(j) > '9'){\nreturn false;\n}\n}\n}\n\n\/\/\u5bf9\u62c6\u5206\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\u4e32\u8fdb\u884c\u8f6c\u6362\u6210\u6570\u5b57\uff0c\u5e76\u5224\u65ad\u662f\u5426\u57280~255\n\n    for(int i = 0; i < arr.length; i++){\n    int temp = Integer.parseInt(arr[i]);\n    if(i == 0){\n    if (temp < 1 || temp > 255){\n    return false;\n    }\n    }\n    else{\n    if(temp < 0 || temp > 255){\n    return false;\n    }\n    }\n    }\n    return true;\n    }\n\n<\/code><\/pre>\n
 <\/p>\n
\u65b9\u6cd5\u4e8c\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f<\/p>\n
public static` `void` `main(String[] args) {``Scanner scanner = ``new` `Scanner(System.in);``String ipStr = scanner.next();``boolean isIpLegal = isIpLegal(ipStr);``if``(isIpLegal) {`\nSystem.out.println(ipStr + \"\" \u5408\u6cd5\"\");\n\n}\nelse{\nSystem.out.println(ipStr + \"\" \u975e\u6cd5\"\");\n}\n}\n\npublic static boolean isIpLegal(String ipStr) {\n   String ipRegEx = \"\"^([1-9]|([1-9][0-9])|(1[0-9][0-9])|(2[0-4][0-9])|(25[0-5]))(\\\\.([0-9]|([1-9][0-9])|(1[0-9][0-9])|(2[0-4][0-9])|(25[0-5]))){3}$\"\";\n  Pattern pattern = Pattern.compile(ipRegEx);\n  Matcher matcher = pattern.matcher(ipStr);\n  if (matcher.matches()) {\n   return true;\n  } \n    else {\n        return false;\n    }\n}\n<\/code><\/pre>\n
 <\/p>\n
 <\/p>\n
\u6d4b\u8bd5\u7528\u4f8b\uff1a<\/p>\n
\u7b49\u4ef7\u7c7b\u5212\u5206\uff1a<\/p>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6709\u6548\u53ef\u7528\u7684IP\u5730\u5740<\/th>\n <\/th>\n<\/tr>\n<\/thead>\n
A\u7c7b<\/td>\n1.0.0.0 -126.255.255.254<\/td>\n<\/tr>\n
A\u79c1\u6709<\/td>\n10.0.0.0 -10.255.255.254<\/td>\n<\/tr>\n
B\u7c7b<\/td>\n128.0.0.0 -191.255.255.254<\/td>\n<\/tr>\n
B\u79c1\u6709<\/td>\n172.16.0.0 -172.31.255.254<\/td>\n<\/tr>\n
C\u7c7b<\/td>\n192.0.0.0 -223.255.255.254<\/td>\n<\/tr>\n
C\u79c1\u6709<\/td>\n192.168.0.0-192.168.255.254<\/td>\n<\/tr>\n
windows\u81ea\u52a8\u5206\u914d<\/td>\n169.254.0.0-169.254.255.254<\/td>\n<\/tr>\n
\u6709\u6548\u4f46\u4e0d\u53ef\u7528\u7684IP\u5730\u5740<\/td>\n <\/td>\n<\/tr>\n
D<\/td>\n224.0.0.0 -239.255.255.254<\/td>\n<\/tr>\n
E<\/td>\n240.0.0.0 -255.255.255.254<\/td>\n<\/tr>\n
\u5168\u7f51<\/td>\n0.x.x.x, x.x.x.0<\/td>\n<\/tr>\n
\u5e7f\u64ad<\/td>\nx.x.x.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
\u56de\u73af127.0.0.0 -127.255.255.254
\n\u8f93\u5165\u7ed3\u679c64.11.22.33\u6709\u6548\u53ef\u752810.12.13.14\u6709\u6548\u53ef\u7528\uff0c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u516c\u7f51151.123.234.56\u6709\u6548\u53ef\u7528172.20.123.56\u6709\u6548\u53ef\u7528\uff0c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u516c\u7f51192.127.35.65\u6709\u6548\u53ef\u7528192.168.128.128\u6709\u6548\u53ef\u7528\uff0c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u516c\u7f51169.254.15.200\u6709\u6548\u53ef\u7528\uff0c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u516c\u7f51224.1.2.3\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u8d85\u8fc7\u6709\u6548\u8303\u56f4\uff08D\u7c7b\uff09250.11.22.33\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u8d85\u8fc7\u6709\u6548\u8303\u56f4\uff08E\u7c7b\uff090.200.3.4\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u5168\u7f51\u5730\u574064.11.22.0\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u5168\u7f51\u5730\u574010.12.13.255\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u5e7f\u64ad\u5730\u5740127.50.60.70\u6709\u6548\u4e0d\u53ef\u7528\uff0c\u56de\u73af\u5730\u5740<\/p>\n
            \"```\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
“`” \u53c2\u8003\u56de\u7b54\uff1a IP\u7684\u683c\u5f0f\uff1a(1~255).(0~255).(0~255).(0~ […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-45813","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=45813"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45813\/revisions"}],"predecessor-version":[{"id":45814,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45813\/revisions\/45814"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=45813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=45813"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=45813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}