Preface:Have you ever encountered a requirement where the product requires the same user to be allowed to log in at the same time according to backend Settings, or when it is not allowed to log in at the same time, it is necessary to force the previous offline scenario. This article will lead you to implement a simple requirement for this scenario...

Before you read this article, please click on "Follow" to facilitate your immediate discussion and sharing, which has brought you a different sense of participation. Thank you for your recognition!The text/knowledge is so strangeEditor/Knowledge is so strangeYangtze RiverIt is the longest and largest river in China, as well as the world's largest river basinabove all...

Ningbo, China Central Radio Network, July 23 (reporter Yu Ye, correspondent Zhang Jie) At 11:00 on July 23, the 5th typhoon of this year, "Du Surui", was located at 14.8 degrees north latitude and 128...

As the largest social e-commerce platform in China, there are often situations where some products have high sales but few comments. This phenomenon is mainly due to the following reasons:1...

Recently, a popular short video method on short video platforms has been "Little Monk" speaking Zen, and this little monk is generated by AI, and most of the short video work is also generated by AI.Many people are quickly gaining followers in this way...

Recently, WeChat Security Center and Alipay official WeChat have issued an urgent reminder to remind users of a new type of fraud. It is understood that scammers impersonate "customer service" and other identities, and use the "FaceTime" function of Apple phones to initiate video calls to users, thereby committing fraud...

As we all know, in terms of mobile phone charging, Apple's iPhone is relatively backward. For example, the latest iPhone 14 series only supports up to 30W wired power, and MagSafe wireless charging is only 15W...

Harbin, July 21 (Reporter Chen Haibo)How about the technical level of amateur ice and snow sports enthusiasts? They can also conduct level evaluations like professional athletes. The State Administration of Market Regulation held a press conference in Harbin on the 21st, releasing 11 national standards for ice and snow sports...

Sun Ji, a famous cultural relics expert and senior librarian of the Central Research Institute of Culture and History, recently left us."Learning with one heart makes great achievements", said Huo Hongwei, a researcher from the Archaeology Department of the National Museum of China, and many other scholars...

Do you often receive marketing calls such as loan management, insurance promotion, real estate agency, education and training?Are you worried that the elderly at home may receive unfamiliar routine phone calls?To prevent users from being harassed by unsolicited marketing calls, under the guidance of the Ministry of Industry and Information Technology, the China Academy of Information and Communications has organized three telecom operators, China Telecom, China Mobile, and China Unicom, to provide "harassing call rejection" services to users nationwide. Users can use the official account of their operators, send business messages, and handle business hall transactions for free to register their willingness to answer phone calls and prevent harassment calls...

According to reports: July 19th, Nanjing. The plane was delayed for 6 and a half hours due to weather conditions, and the staff discovered a subsidy during boarding...

On July 21st, KuaiTech reported that today the three major operators released the latest data, and of course, the number of 5G users is still the highest among mobile users.China Mobile announced that the total number of customers in June was 985 million, with a net increase of 2...