Solidity-030 ForLoop

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.9;

// This is a Solidity smart contract example that demonstrates the use of a for loop to emit events.

contract ForLoopExample {

    // Mapping to store block numbers with their corresponding index.

    mapping(uint => uint) blockNumber;

    // Counter to keep track of the number of block numbers stored.

    uint counter;

    // Event to log the block numbers.

    event uintNumber(uint);

    // Function to add the current block number to the mapping.

    function setNumber() public {

        // Store the current block number in the mapping and increment the counter.

        blockNumber[counter++] = block.number;

    }

    // Function to retrieve and emit all stored block numbers.

    function getNumbers() public {

        // Loop through the stored block numbers and emit them as events.

        for (uint i = 0; i < counter; i++) {

            emit uintNumber(blockNumber[i]);

        }

    }

}

//Deploy :

Solidity-030 ForLoop_第1张图片

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