@tanjiaying45
A smart contract is a self-executing program stored on a blockchain that automatically enforces predefined rules when conditions are met. It operates by executing code in a decentralized network, ensuring transparency, immutability, and trustlessness. When triggered, it processes transactions, verifies conditions, and updates the blockchain state without intermediaries. Mainstream development platforms include Ethereum, using Solidity for complex contracts; Solana, leveraging Rust for high-speed transactions; Binance Smart Chain, supporting Solidity with lower fees; and Polkadot, enabling cross-chain contracts with Substrate. Developers write code, deploy it to the blockchain, and interact via wallets or APIs. Smart contracts power DeFi, NFTs, and automated governance, revolutionizing trust-based systems.
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