Solidity：从字符串中获取哈希值;

Question

是否有可能以某种方式从solidity数组类型获取uint256哈希，例如字符串或bytes32 []？

我想创建映射（uint256 =＆gt;地址），其中uint256是用户之前输入的某个字符串的哈希值。 感谢名单！

Answer 1

You can use keccak256() on any Solidity type (including strings and arrays) to generate a bytes32 hash. From there, you can either just use the bytes32 result as your key or cast it to a uint.

Solidity documentation on keccak