小编use*_*452的帖子

在研究以太坊智能合约的过程中，出现了如何在合约内存储大型结构（数组或映射）的问题。有合同

pragma solidity ^ 0.8.6;

contract UselessWorker {

    uint32 public successfullyExecutedIterations = 0;


    mapping (uint32 => uint32 [6]) items;
    
    event ItemAdded (uint32 result);
    
    function doWork (int _iterations) public {
        for (int32 i = 0; i <_iterations; i ++) {
          items [successfullyExecutedIterations] = [uint32 (block.timestamp), successfullyExecutedIterations, 10, 10, 10, 10];
          successfullyExecutedIterations ++;
        }
        emit ItemAdded (successfullyExecutedIterations);
    }
}

doWork方法用数字数组填充地图 项，由外部脚本调用。同时，项目中出现的记录越多，消耗的磁盘空间就越快（对于 1,000,000 条，区块链大小约为 350 MB，对于 2,000,000 条，约为 1.1 GB，对于 19,000,000 条，约为 22 GB。这是 .ethereum/ …