[Flask backend] record a cross domain experience of sadness
For the first time, the Python back-end interface was sent to the front-end after the Postman test. The front-end worked for a long time and said it was a cross domain problem. I wondered why the web page didn't work when Postman could pass. Was there a problem with the front-end code? The front-end boss explained that the Postman test could no ...
Added by tonbah on Wed, 02 Mar 2022 13:43:40 +0200
Make up a blockchain: serialize the data structure to see how digital currency transmits data
Students who have experience in blockchain development know that to develop smart contract applications, you first need to synchronize the Ethereum main network through geth, which means you need to download a lot of data from other nodes. In addition, when using blockchain technology, such as payment and receiving digital currency, the "w ...
Added by joebloggs1987 on Sun, 20 Feb 2022 08:05:13 +0200
Quantitative technology of data Jun - Part 1 coming children's shoes
Children's shoes interested in quantitative techniques, especially the application of big data and artificial intelligence in quantification, can pay attention to my official account.
datahomex:
Recently, the circle of friends is full of counting money. Before, it was all about money color change. Now it shows that you are non-human with ...
Added by Sj0wKOoMel on Fri, 11 Feb 2022 08:50:52 +0200
Blockchain apprentice: on June 12, the market continued to fall, and when will the reversal trend come?
Blockchain apprentice: on June 12, the market continued to fall, and when will the reversal trend come?
Coin circle news
Highlights on June 12:
The mining ban on cryptocurrency in New York has been suspended. Purpose Ether ETF increased its holdings of 183.74 ETH. eToro CEO: bitcoin is the king of cryptocurrency, and it will continue to e ...
Added by ir4z0r on Mon, 31 Jan 2022 14:45:52 +0200
Blockchain apprentice: on June 22, the market came out of the rapid downward trend again, and the bear market was announced?
Blockchain apprentice: on June 22, the market came out of the rapid downward trend again, and the bear market was announced?
Coin circle news
Hot spots on June 22:
Will host a webinar on companies that include bitcoin on their balance sheets. SWARM was separated from Ethereum foundation in 2019. Opposition parties in El Salvador have ac ...
Added by dopp on Fri, 28 Jan 2022 06:26:34 +0200
2021-07-03 blockchain apprentice: how should we choose a transaction when we were unable to shake the market on July 3?
Blockchain apprentice: how should we choose to trade when we were unable to shake the market on July 3?
Coin circle news
Highlights of July 3:
The Russian central bank plans to study the risks related to encryption investment. Data: gray bitcoin trust will unlock about 41800 BTC s this month. The issuance of BTC anchor coins on Ethereum e ...
Added by -twenty on Sat, 22 Jan 2022 04:00:42 +0200