What information does a string of names and numbers represent in photos taken by mobile phones? As shown in the figure:1442901143849 What does it mean?

As shown in the figure, the photos of mobile phones were taken through WeChat, and a series of numbers with names are the naming rules of photos taken by WeChat, all of which are named according to the rules of mmexportXXXXXXXXXXXXX.jpg.

One of the numbers is a timestamp, which is based on? 65438+65438 in0970+0: 00 1 month1as the starting point, and the number of milliseconds that have passed since the current time (the time when the photo was saved). For example,1442901143849 in the figure represents the time when the photo was saved from 1970 65438+ 10/0/0.

So you can't directly see the date of the saved photo file name, whether it's the date you took the photo or the date you saved it to your mobile phone. You need to convert the number of milliseconds to get the correct shooting or saving date.

Extended data:

Some knowledge of taking photos with mobile phones:

Mobile phone is already a very common shooting tool, and with the development of mobile phone technology, the photos that can be taken by mobile phone can be comparable to SLR to some extent. Mobile phone photography, like camera photography, should pay attention to the use of light and composition creativity. Mobile phone photography also has some common skills.

Maybe many people are taking pictures with their mobile phones. They have no idea that the camera of the mobile phone itself actually has many functions. As long as you use it well, don't lose to the camera. Open the Jiugongge, the main object of the picture should not be placed in the center, but slightly biased, which can make the composition of the photo more perfect.

Using panoramic view skillfully, you can shoot a person's various postures in the same photo.

Do not use scaling. Unlike ordinary cameras, smart phones have only one lens, and their zoom function is analog digital signals. Using electronic zoom often leads to poor photo quality or blurred image.

The background is blurred. Background blur is simply a magical function, which can blur the messy background, make the subject stand out and instantly enhance the beauty of photos, especially when taking portraits. Most people have no resistance to photos with prominent background blur effect and clear and prominent portraits, so this is why almost everyone wants the background blur effect.