1: Search for health codes

Enter WeChat, and click on WeChat search to enter the health code applet.

2: Enter the registration information code

On the health code page, click the option to enter the visitor information registration code of this place.

3: Click Agree

On the prompt page that appears, read the prompt carefully, and then click the red font to agree to this option.

4: Enter information

On the registration page, after entering your name and detailed address, click the submit button below to receive the QR code of the travel code.

Application method 2

1: found the health code program.

Enter the health code applet on Alipay and click on the epidemic area.

2. Click on the epidemic prevention information code.

Find the epidemic prevention health information code service on the epidemic area page.

3: Find the location code

Then click the Location Code application option.

4: Enter information

Enter the name, location and detailed address, and then click the submit option in blue font below.

Run-length coding, also known as run-length coding, run-length coding and variable-length coding, is a statistical coding. The main technique is to detect repeated bit or character sequences and replace them with their frequency.

It is more suitable for binary image coding than for continuous tone image compression, such as photos in daily life. In order to achieve better compression effect, sometimes run-length coding is mixed with other coding methods.