正则表达式

NSString *str = @"";

NSString *pattern = @"((((1[6-9]|[2-9]\\d)\\d{2})-(1[02]|0?[13578])-([12]\\d|3[01]|0?[1-9]))|(((1[6-9]|[2-9]\\d)\\d{2})-(1[012]|0?[13456789])-([12]\\d|30|0?[1-9]))|(((1[6-9]|[2-9]\\d)\\d{2})-0?2-(1\\d|2[0-8]|0?[1-9]))|(((1[6-9]|[2-9]\\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))";

NSError *error = NULL;

NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern: pattern options: nil error: &error];

NSArray *match = [regex matchesInString: str options: NSMatchingCompleted range: NSMakeRange(0, [str length])];

if (match.count != 0) {

// ...

}

-----------------匹配身份证号

NSString *str = @"";

NSString *pattern = @"\\d{15}|\\d{17}[0-9Xx]";

NSError *error = NULL;

NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern: pattern options: nil error: &error];

NSArray *match = [regex matchesInString: str options: NSMatchingCompleted range: NSMakeRange(0, [str length])];

if (match.count != 0) {

// ...

}