iOS校验身份证是否合法
//身份证号验证 1900+/2000+的年份日期的正则表达式经过修改,目前貌似是对的,如果哪位朋友发现错误希望能够给与提示 //返回yes位表示格式正确,否则为错误 -(BOOL)IDCardAuth:(NSString *)value { //stringByTrimmingCharactersInSet :去除字符串中的特殊字符 //[NSCharacterSet whitespaceAndNewlineCharacterSet] 空格 //自定义要去除的特殊字符 //NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:@"@/:;()¥「」"、[]{}#%-*+=_\\|~<>$€^•'@#$%^&*()_+'\""]; value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSInteger length =0; if (!value) { return NO; }else { length = value.length; if (length !=15 && length !=18) { return NO; } } // 省份代码 NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41",@"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"]; NSString *valueStart2 = [value substringToIndex:2]; BOOL areaFlag =NO; for (NSString *areaCode in areasArray) { if ([areaCode isEqualToString:valueStart2]) { areaFlag =YES; break; } } if (!areaFlag) { return false; } //生日部分的编码 NSRegularExpression *regularExpression; NSUInteger numberofMatch; NSInteger year =0; switch (length) { case 15: year = [value substringWithRange:NSMakeRange(8,2)].intValue +1900; if (year %400 ==0 || (year %100 !=0 && year %4 ==0)) { regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性 }else { regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性 } //numberofMatch:匹配到得字符串的个数 numberofMatch = [regularExpression numberOfMatchesInString:value options:NSMatchingReportProgress range:NSMakeRange(0, value.length)]; if(numberofMatch >0) { return YES; }else { return NO; } case 18: year = [value substringWithRange:NSMakeRange(6,4)].intValue; if (year %400 ==0 || (year %100 !=0 && year %4 ==0)) { //原来的@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$" regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性 }else { regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性 } numberofMatch = [regularExpression numberOfMatchesInString:value options:NSMatchingReportProgress range:NSMakeRange(0, value.length)]; //验证校验位 if(numberofMatch >0) { int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3; int Y = S %11; NSString *M =@"F"; NSString *JYM =@"10X98765432"; M = [JYM substringWithRange:NSMakeRange(Y,1)];// 判断校验位 if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) { return YES;// 检测ID的校验位 }else { return NO; } }else { return NO; } default: return false; } }