Introduction - If you have any usage issues, please Google them yourself
Verify the identity card numbers of the effectiveness of the program. Identity card number must be 18, and 17 must be numeric, the last one can only be a number or lowercase letters x, 7-14 is the date of birth must conform to the effectiveness of detection, ie in 1900 to 2010, month between 1-12 days to consider the case of a leap year.