substrate ink! contract 跨合约调用

Substrate ink is a programming language used for building smart contracts on the Substrate blockchain framework. It is designed to be easy to use and allows developers to write contracts in Rust, a popular systems programming language.

Cross-contract calls, also known as contract-to-contract calls, are a feature of Substrate that allows smart contracts to interact with each other. This means that one contract can call functions in another contract, enabling more complex and sophisticated applications to be built on the blockchain.

Cross-contract calls are achieved using the Substrate runtime API, which provides a set of functions that can be used to interact with other contracts. Developers can use these functions to send messages to other contracts, query data from other contracts, and receive messages from other contracts.

Overall, Substrate ink and cross-contract calls are powerful tools that enable developers to build complex and interoperable smart contracts on the Substrate blockchain