Dongying District, Dongying City, Shandong Province: 257000.

Dongying City, Shandong Province: 257000.

Mobile phone: Huawei p30

System: EMUI 9.1

Software: Baidu 13.1

1. First open Baidu, as shown in the figure below Display location search and postal code query.

2. Then select the first applet at the location as shown below.

3. Next, fill in the relevant information in the search box.

4. Then click Search on the keyboard.

5. You can query the postal code.