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【台式机】2020-10-08，8K档-Intel配置 配置要求：Matlab，绘图，人工智能配置表：全京东名称产品备注价格CPUI7 10700https://item.jd.com/100011978542.html2499cpu散热利民霜灵 FS140大霜塔https://item.jd.com/100010498068.html259主板微星B460M迫击炮wifihttps://item.jd.com/100013654784.html#crumb-wrap849内存条十铨DDR4 3000https://item.jd.com/100002962320.html#crumb-wrap209*2电源长城G6金牌直出 650whttps://item.jd.com/10020570707608.html#crumb-wrap469SSD西数SN750 黑盘240Ghttps://item.jd.com/100003227004.html369HDD东芝P300 2Thttps://item.jd.com/2073068.html359显卡RTX3060预计明天第一或第二季度发售2500左右总价------不算显卡 52227722淘宝+京东名称产品备注价格CPU+主板套装I7 10700+微星B460M迫击炮https://item.taobao.com/item.htm?spm=a230r.1.14.122.3316422fjLSV92&id=618876373815&ns=1&abbucket=12#detail2529cpu散热利民霜灵 FS140大霜塔https://detail.tmall.com/item.htm?spm=a1z10.5-b-s.w4011-18644493634.69.41a0367241kQbS&id=610219291327&rn=487d2c5c0ce6c281004bb173f737e003&abbucket=9&skuId=4345392596414259内存条十铨DDR4 3000 8Gx2https://detail.tmall.com/item.htm?spm=a220o.1000855.0.da321h.30cc1dc3lvrLgT&id=551296093439&skuId=4332416924109370电源长城G6金牌 650whttps://item.jd.com/10020570707608.html#crumb-wrap469SSD西数SN750 黑盘240Ghttps://item.jd.com/100003227004.html369HDD东芝P300 2Thttps://item.jd.com/2073068.html359显卡RTX3060预计明天第一或第二季度发售2500左右总价------不算显卡 43556855 -
2020.10 手机号码正则表达式 JavaPattern p = Pattern.compile("^1(3([0-9]\\d|4[1-8])|4[14-9]\\d|5([0125689]\\d|7[1-79])|66\\d|7[2-35-8]\\d|8\\d{2}|9[13589]\\d)\\d{7}$"); Matcher m = p.matcher(mobile);js^1(3([0-9]\d|4[1-8])|4[14-9]\d|5([0125689]\d|7[1-79])|66\d|7[2-35-8]\d|8\d{2}|9[13589]\d)\d{7}$通用正则^1[3-9]\d{9}$原文地址：点击跳转
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MD5加盐算法 jar包<dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.15</version> </dependency>代码 /** * 生成含有随机盐的密码 */ public static String generate(String password) { Random r = new Random(); StringBuilder sb = new StringBuilder(16); sb.append(r.nextInt(99999999)).append(r.nextInt(99999999)); int len = sb.length(); if (len < 16) { for (int i = 0; i < 16 - len; i++) { sb.append("0"); } } String salt = sb.toString(); password = md5Hex(password + salt); char[] cs = new char[48]; for (int i = 0; i < 48; i += 3) { cs[i] = password.charAt(i / 3 * 2); char c = salt.charAt(i / 3); cs[i + 1] = c; cs[i + 2] = password.charAt(i / 3 * 2 + 1); } return new String(cs); } /** * 校验密码是否正确 */ public static boolean verify(String password, String md5) { char[] cs1 = new char[32]; char[] cs2 = new char[16]; for (int i = 0; i < 48; i += 3) { cs1[i / 3 * 2] = md5.charAt(i); cs1[i / 3 * 2 + 1] = md5.charAt(i + 2); cs2[i / 3] = md5.charAt(i + 1); } String salt = new String(cs2); return md5Hex(password + salt).equals(new String(cs1)); } /** * 获取十六进制字符串形式的MD5摘要 */ public static String md5Hex(String src) { try { MessageDigest md5 = MessageDigest.getInstance("MD5"); byte[] bs = md5.digest(src.getBytes()); return new String(new Hex().encode(bs)); } catch (Exception e) { return null; } } @Test public void test(){ String password = generate("123"); System.out.println(password); System.out.println(verify("123", password)); }
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