How did the four points on the weather forecast of Huawei mobile phone Maimang 9 become three points?

The method of changing four points on the weather forecast of Huawei mobile phone Maimang 9 into three points;

1, open the weather APP of the mobile phone.

2. Click on the four points in the upper right corner and select Degree-Day.

3. Turn four points into three points. The weather forecast is updated every 6 hours and 4 times a day. In the future, with the improvement of technology and equipment, the number of updates will increase accordingly.