After following, you can keep track of his dynamic information in a timely manner
MySQL performance optimization is crucial to e-commerce platforms. 1. Reasonably design the database structure, balance standardization and anti-standardization, use appropriate data types, and avoid abuse of large fields. 2. Index optimization, build indexes for high-frequency fields, avoid low selectivity fields, pay attention to the order of combined indexes, and clean useless indexes regularly. 3. Query optimization, reduce the number of SELECTs, avoid using functions in WHERE, optimize paging queries, and cache hotspot data. 4. Configure tuning, increase the number of connections limits, adjust query cache, optimize InnoDB settings, and enable independent tablespaces.
Aug 05, 2025 am 01:45 AM
To open multiple query tabs under the same database connection, the key is to use tools that support this feature and operate correctly. 1. Mainstream database tools such as MySQLWorkbench and DBeaver natively support the multi-query page function. After opening the connection, click "New Query" to create a new tab page, and each page shares the same session; 2. In VSCode, it can be implemented through SQL plug-in. Right-click the database connection and select "NewQuery" or click " " to add the query page. Pay attention to whether the plug-in allows multiple pages to be concurrent; 3. Common problems should be avoided when using it, such as misjudging the number of connections, variable conflicts, blockage caused by unsubmitted transactions, etc. The connection status and tool settings should be checked to ensure normal operation.
Aug 05, 2025 am 01:43 AM
To parse RSSfeed, you need to use Swift's XMLParser to parse XML data and extract article information. 1. Understand the RSS structure, which is in XML format, including channel and multiple items, each item has title, description, link and pubDate. 2. Create an RSSItem model structure, including title, description, link and pubDate properties. 3. Create the RSSParser class using XMLParser of the Foundation framework, implement asynchronous parsing and callback results. 4. Follow XMLParserDelegate protocol, in didSt
Aug 05, 2025 am 01:17 AM
Use the iterparse() method of lxml to efficiently parse large XML files. First, give clear answers to the problem, and then expand detailed descriptions. The core answers of the article must be accurately refined, and must be expressed in a complete sentence. There must be no truncation. When the text content lists steps or key points in sequence, the summary also needs to be listed in sequence, and it is consistent with the answer order of the article. The summary must not have a title, and must be a paragraph, and there must be no line breaks. The output content is only text, and do not output special symbols such as "\n". 1. Use lxml.etree.iterparse() and set events=('end',) and specify tag parameters to implement incremental parsing; 2. Process each element
Aug 05, 2025 am 01:11 AM
GSAPisthepreferredtoolforwebanimationoverCSSorJavaScriptduetoitssuperiorperformance,precisecontrol,andrichfeatureset.1.ItavoidslayoutthrashingandusesrequestAnimationFrameforsmoothrendering.2.Itallowsfullanimationcontrol—play,pause,reverse,andscrubtim
Aug 05, 2025 am 12:52 AM
Python multi-threading is suitable for I/O-intensive tasks, such as network requests, file read and write, database query, etc., because most of these operations are in a waiting state, and thread switching is not affected by GIL; 1. Creating threads can be implemented through threading modules to pass functions or inherit Thread classes; 2. Managing threads should be careful to avoid leakage, control quantity, and use thread pools; 3. Concurrency problems require locking (threading.Lock) to solve resource competition, while avoiding deadlocks and ensuring operation thread safety.
Aug 05, 2025 am 12:46 AM
To delete a user account, you must follow five steps: permission confirmation, process inspection, data processing, operation methods and recycling mechanism. First, confirm whether you have the delete permission. Different platforms have different permissions, and some require super administrators or IT departments to intervene; second, check the platform documents or enterprise processes, which may involve approval or user notification; third, handle data backup, unfinished orders and legal compliance issues; fourth, perform deletion through the backend management interface or API, and pay attention to database operation specifications in the self-developed system; finally, it is recommended to enable the delayed deletion or recycling bin mechanism to prevent error deletion and retain recovery opportunities.
Aug 05, 2025 am 12:37 AM
Navicat'sValueGeneratorisatoolthatautomatesthecreationofrealistictestdatafordatabasetables.1.Ithelpsfilltableswithsampledatabasedonpredefinedrules,suchasgeneratingnames,emails,dates,ornumbers.2.Userscancustomizegenerationmethodspercolumn,setvaluerang
Aug 05, 2025 am 12:24 AM
To solve the problem of slow MySQL query, the key is to locate bottlenecks and then perform targeted optimization. 1. First check whether the slow query log is enabled. If it is not enabled, you need to set slow_query_log=1, long_query_time=1 in the configuration file and specify the log path, and then restart or dynamically load the configuration; 2. Analyze the content of the slow query log, use the mysqldumpslow tool to sort by execution time, pay attention to problems such as not using indexes, returning too much data, and complex JOINs; 3. Use EXPLAIN to analyze the query execution plan, check the type, possible_keys, key, rows and Extra fields, and determine whether full table scans or high overhead occur.
Aug 05, 2025 am 12:19 AM
TheFetchAPIisamodern,promise-basedmethodformakingHTTPrequestsinJavaScriptthatdoesnotrejectonHTTPerrorstatuseslike404or500bydefault,requiringmanualcheckingofresponse.ok.1.Usefetch('url')forGETrequestsandhandletheresponsewith.then()orasync/await.2.ForP
Aug 05, 2025 am 12:17 AM
Use the xml2js library to convert XML to JSON, and the element values in the result are wrapped in an array; 2. Use xmltodict to parse XML into a dictionary and convert it to JSON, and the values are not forced to be an array; 3. Use dicttoxml to convert JSON to XML, supporting custom root tags; 4. Use js2xml to convert JSON into a clear structure in JavaScript; 5. Online tools and command-line scripts are suitable for scenarios without programming; 6. When converting, you need to pay attention to the differences between attributes and elements, duplicate tags, data types, namespaces, etc., and it is impossible to guarantee a completely lossless bidirectional conversion.
Aug 05, 2025 am 12:10 AM
The ss command is faster and more powerful than netstat because it directly obtains data from the kernel; 2. Common combinations such as ss-a display all sockets, ss-tuln quickly view the listening port, ss-tlnp displays process information, ss can be filtered by port or status, such as ss-t'sport>=:3000' or ss-tstatetime-wait, accurately locate network problems, and is the preferred tool for modern Linux network troubleshooting.
Aug 05, 2025 am 12:01 AM
The top ten exchange apps in the currency circle in 2025 are: 1. Binance, which is the first choice for its world-leading trading volume, rich functions and high liquidity; 2. OkX, which has outstanding performance in derivative trading and Web3 account integration; 3. Huobi (HTX), has a long history and stable operation, and is deeply trusted by Asian users; 4. Gate.io (Sesame Open Door), is known for its massive altcoins online, suitable for projects that tap early potential; 5. Coinbase, as a US listed compliance platform, is safe and reliable, suitable for beginners and institutional users; 6. Kraken, which wins high credibility with its excellent security and multi-fixed currency support; 7. KuCoin, which is known as the "People's Exchange",
Aug 04, 2025 pm 08:45 PM
Binance App is the first choice for the world's largest trading volume, comprehensive functions and top security; 2. Ouyi App is known for its powerful derivatives trading and integrated Web3 accounts, with smooth operation and novice-friendly operations; 3. Huobi App is a veteran exchange, safe and stable, suitable for users who prefer stable investment; 4. Gate.io App has a rich currency, known as the "treasure of altcoins" and provides 100% margin audit certificate; 5. The KuCoin App has a simple interface, supports rich altcoins and automated trading functions, and often has user welfare activities; 6. Bitget App is outstanding with the "one-click follow-up" function, suitable for novices to copy professional trading strategies, and has strong contract liquidity; 7. Kraken
Aug 04, 2025 pm 08:42 PM
The answer is: Binance App must be downloaded through official channels to ensure security. 1. When visiting Binance's official website, you must confirm that the URL is real and valid to avoid counterfeit websites; 2. Android users need to download the Android version installation package on the official website and allow the installation to be completed after installing applications from unknown sources; 3. Apple users should jump to the App Store to download through the link provided by the official website, which is the safest way; 4. Never download through unofficial links, emails or social groups, do not disclose the private key or password to anyone, and always verify the official domain name to ensure the security of the assets.
Aug 04, 2025 pm 08:39 PM
The secure download of Binance APP must be carried out through official channels. 1. Apple users should visit the official website, find the download portal, jump to the App Store and complete the download; 2. Android users recommend downloading the installation package through the official website or searching for official applications on Google Play, paying attention to checking the developer information; 3. Do not download from unofficial links, be sure to verify the official website address and keep the application updated to ensure asset security.
Aug 04, 2025 pm 08:36 PM
First adjust the mobile phone security settings, go to "Settings" → "Security" → "More Security Settings", and enable "Allow the installation of external sources"; 2. Use your mobile browser to access the Binance official website, confirm that the URL is correct and download the official Android installation package; 3. After the download is completed, find the installation package through the notification bar or file manager, click and confirm the installation, and complete the installation. After ignoring the security risk warning; it is recommended to close the external installation permissions to ensure the safety of the mobile phone, and be sure to ensure that the entire process is downloaded from the official channel to protect the asset security.
Aug 04, 2025 pm 08:33 PM
To securely obtain the latest version of Ouyi Exchange, you need to go through official channels. 1. Use mainstream search engines to search for "Ouyi Exchange Official Website"; 2. In the search results, identify and click the official link, pay attention to checking the domain name; 3. After entering the official website, find the "App Download" entrance. After Android users download the installation file, they need to temporarily enable the "Allow to install applications from unknown sources" permission. It is recommended to close the permission after the installation is completed. Apple users are given priority to search and download on the App Store. If they cannot obtain it, they can install it through TestFlight or enterprise certificate according to the official website's guidelines, and trust the description file in device management. Do not download through unofficial channels. You should keep the application updated, grant permissions with caution, and enable Google Verifier and other secondary verification immediately after logging in to ensure that
Aug 04, 2025 pm 08:30 PM
In order to ensure the security of accounts and assets, it is necessary to download the App through the official website of Ouyi Exchange to avoid information leakage or asset losses caused by unofficial channels; 2. The official download address is usually the only domain name published on the official website, such as the official website download address.cc, and the latest announcement of the official website shall prevail; 3. The App provides tools such as real-time market conditions, K-line charts, in-depth charts, and other tools to support various trading methods such as spot and contracts; 4. Adopt multiple security mechanisms such as hot and cold accounts separation and secondary verification to ensure asset security; 5. The interface is simple and intuitive, and the operation is smooth, suitable for all kinds of users to get started quickly; 6. Users should always recognize the official channels to ensure the download of genuine applications, ensure the security of digital assets, and complete a safe trading experience.
Aug 04, 2025 pm 08:27 PM
Web3 is a "read-write-owned" Internet, and its core is to hand over data and power to users. 1. Blockchain and decentralization form their technical skeleton, and a transparent and censor-resistant system is achieved through distributed ledgers; 2. Users fully control their digital identities and data through encrypted accounts and no longer rely on a centralized platform; 3. The token economy redistributes value through tokens, allowing users to become the co-owners and builders of the platform. From Web1 read-only, Web2 read-write to Web3 read-write ownership, the Internet has experienced the evolution from static content to user creation and then to user sovereignty. By 2025, Web3 has developed multiple practical application scenarios: 1. DeFi builds an open financial system, emphasizing the combination of compliance, security and real assets.
Aug 04, 2025 pm 08:24 PM
The best strategies for earning passive income through Web3 game tokens in August 2025 include: 1. Participate in token pledge of tokens for online main networks and reasonable APY (15%-50%) projects to obtain stable returns; 2. Prioritize the liquidity pool paired with stablecoins to provide liquidity, reduce the risk of impermanent losses and earn transaction fees; 3. Rent high-value game NFTs to active players and use mature rental markets or guild systems to achieve asset appreciation; 4. Actively participate in early game projects that have not yet issued coins but have strong backgrounds, and complete tasks to strive for future airdrop rewards. At the same time, we must be vigilant against market fluctuations, smart contract loopholes and project party risks, give priority to audited projects, do independent research, diversify investments and invest only funds that can bear losses, so as to
Aug 04, 2025 pm 08:21 PM
The core currencies of the Web3 sector include: 1. Ethereum (ETH), Polkadot (DOT), and Solana (SOL) in the underlying public chain and infrastructure; 2. Filecoin (FIL), and Arweave (AR) in decentralized storage.
Aug 04, 2025 pm 08:18 PM
The most noteworthy Web3 game tokens and popular games in August 2025 include: 1. IMX, because heavyweight games such as Illuvium and Guild of Guardians are maturely operated on ImmutableX, and may usher in cooperation with traditional game giants to promote token growth; 2. PRIME, with the improvement of Parallel e-sports ecosystem, the first world-class championship may be held in August to increase the demand and pledge value of tokens; 3. SHRAP, Shrapnel games may be publicly beta or launched at this time. As an AAA-level FPS work, its tokens will be deeply used for equipment purchase, map release and governance, triggering market attention; at the same time, the most popular crypto games are: 1. Shrap
Aug 04, 2025 pm 08:15 PM
The core of Web3 is to allow users to truly own their own data and assets. 1. Web1 can only read, and information is spread in one-way; 2. Web2 can read and write, but the platform controls everything; 3. Web3 realizes decentralization through blockchain technology, allowing users to read, write, and possess more. The data is controlled by individuals. Assets are safe and tampered with stronger privacy. Transactions are demediated. Applications cannot be unilaterally closed, and the power of the Internet is returned to users to build a more fair and open online world.
Aug 04, 2025 pm 08:12 PM
Web3 is a read-write-owned Internet, 1. It allows users to truly own digital assets and data through decentralized technology; 2. Cryptocurrencies such as Bitcoin are digital gold, and Ethereum is a "world computer" that supports DApps; 3. Users need to use digital accounts to store assets and pay the "fuel fee" for transactions with ETH; 4. Decentralization means no middlemen, censorship resistance, data sovereignty belongs to individuals, and rules are transparent; 5. When getting started, you must first obtain an account and a small amount of ETH to explore applications such as DeFi, NFTs, DAOs; Web3 is still in its early stages, opportunities and risks coexist, but the future has come, and you should be curious and cautious in participating.
Aug 04, 2025 pm 08:09 PM
Web3 will move towards large-scale implementation in 2025. Novice should focus on the four core tracks and follow the four-step security layout strategy. 1. Modular blockchain and multi-chain ecosystem: improve efficiency through functional splitting and lower user thresholds. It is recommended to pay attention to projects such as Arbitrum, Optimism, Celestia, etc.; 2. DePIN: Use token incentives to build decentralized physical infrastructure, such as Filecoin, Helium, Render Network, which has real value support and huge market potential; 3. AI Web3 integration: Web3 solves the data privacy and transparency of AI, and AI empowers smart contracts and DAO governance, and you can pay attention to decentralized computing power and data verification.
Aug 04, 2025 pm 08:06 PM
Participating in project interactions can be ambushed and airdropped, that is, you can obtain tokens for free through testnet activities or small-scale interactions. It is suitable for those with low funding thresholds but you need to be wary of fraud; 2. The Learn-to-Earn model allows users to earn tokens at zero cost by learning Web3 knowledge and completing tests, both learning and profitable; 3. Play-to-Earn game allows users to earn tradable digital assets while playing games, suitable for game enthusiasts but pay attention to market fluctuations and project risks; 4. Content creation and community contributions can be used to monetize personal talents through writing, design or Q&A, without programming skills and flexible time; 5. Complete micro-tasks such as following social media or filling in questionnaires, you can get cryptocurrency rewards instantly, suitable for using fragmented time. Web3
Aug 04, 2025 pm 08:03 PM
Blockchain is a super large ledger that everyone can participate in, keep accounts together, is open and transparent and cannot be tampered with; Bitcoin is a digital currency application based on blockchain, and Ethereum is an upgraded platform that supports smart contracts and decentralized applications on blockchain.
Aug 04, 2025 pm 08:00 PM
The official websites of mainstream stablecoins in 2025 include: 1. USDT's official website is tether.to; 2. USDC's official website is circle.com/en/usdc; 3. TUSD's official website is tusd.io; 4. USDP's official website is paxos.com/usdp; 5. DAI's official website is makerdao.com; 6. BUSD issuer's official website is paxos.com/busd; users should visit through these official channels to ensure the safety of assets. At the same time, please note that BUSD has stopped minting new coins and gradually withdraw from the market. You must be vigilant about phishing websites, check the domain name and obtain links through trusted sources. It is recommended to collect the official website to ensure the safety of use.
Aug 04, 2025 pm 07:57 PM
Binance provides real-time and comprehensive market data and TradingView chart tools, suitable for investors at all levels; 2. Ouyi supports multi-market market trends and portfolio tracking with a simple interface and unified account system; 3. Huobi's market is stable and reliable, covering mainstream assets, and has high reference value for the Asian market; 4. Gate.io has rich currency, and is an important platform for mining early projects and niche currencies; 5. TradingView is the first choice for global traders, providing powerful chart analysis and community communication functions; 6. CoinMarketCap is an authoritative aggregation platform for viewing market value, rankings and basic data; 7. CoinGecko uses multi-dimensional data and trust scores to evaluate projects and exchanges, providing more comprehensive
Aug 04, 2025 pm 07:54 PM
