There are many questions about stamps and ID cards. Read on slowly. Urgent! ! !

Postal code:

1. Five digits, because this is the tradition of the motherland, including area code, address, street number. For example, Beijing’s postal code starts with 1, and then press Beijing’s Continue coding from district to street number

2. First code from city to district to street number

Coding rules for postal codes in my country

my country A four-level six-digit coding system is adopted. The first two digits represent the province, city, or autonomous region, the third digit represents the postal area, the fourth digit represents the county, city, and delivery post office, and the last two digits represent the delivery area of ??the city from which the delivery is made. , that is, the location of the delivery area.

For example: the postal code "130021" and "13" represent Jilin Province, "00" represents the provincial capital Changchun, and "21" represents the delivery area.

3. Postal code is a special code for postal communication to realize machine sorting of mail. It is a necessary tool to realize postal modernization. The ultimate goal is to improve the speed and accuracy of your letters during the delivery process, so in Be sure to indicate your postal code when sending letters and packages. If you do not know the postal code of the other party (recipient), you can consult on the postal code query machine installed in the local post office or the postal business multimedia computer query system, or you can inquire through the 11185 special service phone.

In order to automate mail sorting and digitize the postal network and speed up mail delivery, more than 40 countries in the world have implemented the postal code system, and use it as a measure of a country's communications technology and postal services. One of the standards of service level. Postal code rules are not uniform across countries.

my country’s postal code coding rules:

my country adopts a four-level six-digit coding system. The first two digits represent provinces, municipalities, and autonomous regions, the third digit represents the zip code, and the fourth digit represents the postal code. Represents the county and city, the last two digits represent the delivery post office, and the last two digits represent the delivery area in the city from which the delivery is delivered, that is, the location of the delivery area.

For example: the postal code "130021" and "13" represent Jilin Province, "00" represents the provincial capital Changchun, and "21" represents the delivery area.

United States Postal Code Coding Rules:

Postal codes are postal codes, used by the United States Postal Service, with capital letters. ZIP, is an acronym for Area Improvement Plan, but is also thought to cleverly allude to the fact that mail travels more efficiently (and therefore faster) when the sender uses it. A basic postal code consists of five digits. An extended ZIP 4 code consists of the five digits of the zip code plus the four digits that allow mail to be delivered to a specific address. ZIP Code is a registered trademark of the United States Postal Service.

Zip codes are numbered with the first digit representing a certain group of U.S. states, the second and third digits together representing a region in that group (or perhaps a large city), and the fourth and The fifth number represents a more specific area, such as a town or district in that city. The principal town in the region (if possible) always gets the first postal code for that region; after that, the numerical order usually follows alphabetical order. Like area codes, postal codes are divided and sometimes changed, especially as rural areas become suburban.

Coding rules for French postal codes:

French postal codes began in 1972, with 6 digits. The first two digits represent the province, and the last three digits represent the city and region respectively. or post office.

Coding rules for Japanese postal codes:

The new postal code system developed by Japan Post was put into use on February 2, 1998. The purpose of developing this system is to meet the needs of the increasingly expanding postal mechanization operations, improve operational efficiency, and at the same time ensure that stable, cheap and high-quality services are provided to users.

Its main features are as follows:

The number of digits in the postal code: 7 digits, using the character "—" between the first three and last four digits; text structure: currently all numbers are used; old and new postal codes The connection between systems: the three or five digits in the old encoding are used as the first few digits of the new encoding; the particularity of the new encoding: each small part of the address (such as cho, oaza) is designated as a number. , concatenated after the existing zip code. Large enterprises and other business centers can have specialized codes. (Sorry it’s a bit long, you can pick a part)

4. No. 1341 East, Section 1, Guanghua Avenue, Qingyang District, Chengdu.

Postcode: 610091

Office: (028)87460138

Academic Affairs Office: (028)87466178

Moral Education Office: (028) 87460538

5. Jinshan School

Address: 1268 Shanyin Road, Beigan Street, Xiaoshan District, Hangzhou

Postcode: 311202

ID card:

1. One of the last four digits on the ID card indicates gender, but it is not the last one! If the second to last digit of the 18-digit ID number is an odd number, it is a male, and an even number is a female! The last digit is the computer identification code! I graduated from a public security college and studied "Household Management"! For the new 18-digit ID number, there is a special calculation method: each digit of the ID number corresponds to a number, multiply each two and then add them all and divide the sum by 11. The final remainder is the last digit. Number of digits! If the remainder is 10, the last digit is X! Please tell me upstairs, if the last digit of the ID number is X, what gender does that represent? I'm so confused... Let me repeat it again: the 1st to 6th digits are the administrative division code, the 7th to 14th digits are the date of birth code, the 15th to 17th digits are the allocation sequence code, and the last digit is the computer identification code!

2. Opening a bank card account, booking a hotel room, and transiting through the airport also requires an ID card before you can purchase a ticket. The ID card must be kept well, otherwise it will be used to do bad things.

3. The original code was 13 digits, but now it has been changed to 18 digits. First press the city number, then the year, month and day of birth, and then the gender and province composition code.

4. Encoding is a code number that is certified or differentiated. Encoding has a wide range of uses. Books, memory, videos, and materials all use encoding.

Coding examples: book coding, memory coding, video coding, material coding, restaurant menus, and company employee coding... Among them, book coding information: the book ISBN number will be changed from the current The 10-digit system was upgraded to 13 digits, and the implementation date of the new 13-digit International Standard Book Number is January 1, 2007.

The 10-digit ISBN system is composed of four parts: group number, publisher number, book serial number, and check number. They are connected by "-" in the middle. Each group of numbers has a different meaning.

The first group of numbers is the area code, also called the group number. The shortest is only one digit, and the longest is five digits. Generally speaking, it takes into account the language, country and region. 0 and 1 represent English. The countries using these two codes are: Australia, Canada, Ireland, New Zealand, Puerto Rico, South Africa, the United Kingdom, the United States, Zimbabwe, etc.; 2 represents French, France, Luxembourg, and the French-speaking areas of Belgium, Canada, and Switzerland. Use this code; 3 represents German, used in Germany, Austria and the German-speaking areas of Switzerland; 4 is the code for Japanese publications; 5 is the code for Russian publications; 7 is the code used for Chinese publications.

The second group: publisher code. It is set up by the national or regional ISBN center and distributed to various publishing houses.

The third group: book sequence code. The publication code is the number assigned to each publication by the publisher.

Group 4: Computer check code. The check code is the last digit of the ISBN number, which can verify whether the ISBN number is correct. The check code can only be 1 digit. When it is 10, it is recorded as Roman numeral X.

I wish you good luck, host, there is only so much I can help, thank you!