前言
大家都知道開發一直離不開一些常用驗證格式，比如：郵箱，手機號等等，在開發過程中一般都會新建一個工具類，專門管理這些驗證方式，簡便開發過程。一般都采用正則表達式的形式來做判斷，本文列舉一些項目中非常實用的一些正則表達式的判斷語句，以后開發起來直接復制粘貼就可以，這樣大大節省了開發時間，下面不多說，直接上代碼。
一、驗證移動手機號：
+ (BOOL)isMobile:(NSString*)mobile{ NSString *regex = @"^1+[34578]+/d{9}"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; return [pred evaluateWithObject:mobile];}二、郵箱驗證：
+ (BOOL)isEmail:(NSString*)email{ NSString *regex = @"^[//w-]+(//.[//w-]+)*@[//w-]+(//.[//w-]+)+$"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; return [pred evaluateWithObject:email];}三、整形驗證
+ (BOOL)isPureInt:(NSString*)string{ NSScanner* scan = [NSScanner scannerWithString:string]; int val; return[scan scanInt:&val] && [scan isAtEnd];}四、浮點型驗證
- (BOOL)isPureFloat:(NSString*)string{ NSScanner* scan = [NSScanner scannerWithString:string]; float val; return[scan scanFloat:&val] && [scan isAtEnd];}五、中文驗證
+ (BOOL)isChinese:(NSString*)chinese{ NSString *regex = @"^[/u4e00-/u9fa5]"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; return [pred evaluateWithObject: chinese];}六、網址URL驗證
+ (BOOL)isURL:(NSString*)url{ NSString *regex = @"[a-zA-z]+://[^/s]*"; NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; return [pred evaluateWithObject: url];}七、身份證號驗證(比較繁瑣)
+ (BOOL)verifyIDCardNumber:(NSString *)IDCardNumber { IDCardNumber = [IDCardNumber stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; if ([IDCardNumber length] != 18) { return NO; } NSString *mmdd = @”(((0[13578]|1[02])(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)(0[1-9]|[12][0-9]|30))|(02(0[1-9]|[1][0-9]|2[0-8])))”; NSString *leapMmdd = @”0229”; NSString *year = @”(19|20)[0-9]{2}”; NSString *leapYear = @”(19|20)(0[48]|[2468][048]|[13579][26])”; NSString *yearMmdd = [NSString stringWithFormat:@”%@%@”, year, mmdd]; NSString *leapyearMmdd = [NSString stringWithFormat:@”%@%@”, leapYear, leapMmdd]; NSString *yyyyMmdd = [NSString stringWithFormat:@”((%@)|(%@)|(%@))”, yearMmdd, leapyearMmdd, @”20000229”]; NSString *area = @”(1[1-5]|2[1-3]|3[1-7]|4[1-6]|5[0-4]|6[1-5]|82|[7-9]1)[0-9]{4}”; NSString *regex = [NSString stringWithFormat:@”%@%@%@”, area, yyyyMmdd , @”[0-9]{3}[0-9Xx]”];NSPredicate *regexTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];if (![regexTest evaluateWithObject:IDCardNumber]){ return NO;}int summary = ([IDCardNumber substringWithRange:NSMakeRange(0,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(10,1)].intValue) *7+ ([IDCardNumber substringWithRange:NSMakeRange(1,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(11,1)].intValue) *9+ ([IDCardNumber substringWithRange:NSMakeRange(2,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(12,1)].intValue) *10+ ([IDCardNumber substringWithRange:NSMakeRange(3,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(13,1)].intValue) *5+ ([IDCardNumber substringWithRange:NSMakeRange(4,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(14,1)].intValue) *8+ ([IDCardNumber substringWithRange:NSMakeRange(5,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(15,1)].intValue) *4+ ([IDCardNumber substringWithRange:NSMakeRange(6,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(16,1)].intValue) *2+ [IDCardNumber substringWithRange:NSMakeRange(7,1)].intValue *1 + [IDCardNumber substringWithRange:NSMakeRange(8,1)].intValue *6+ [IDCardNumber substringWithRange:NSMakeRange(9,1)].intValue *3;NSInteger remainder = summary % 11;NSString *checkBit = @"";NSString *checkString = @"10X98765432";checkBit = [checkString substringWithRange:NSMakeRange(remainder,1)];// 判斷校驗位return [checkBit isEqualToString:[[IDCardNumber substringWithRange:NSMakeRange(17,1)] uppercaseString]];}八、一般用戶名的驗證
+ (BOOL) isUserName:(NSString *)name{ NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$"; NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex]； return [userNamePredicate evaluateWithObject:name];}總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作能帶來一定的幫助，如果有疑問大家可以留言交流。
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