17 lines
482 B
Solidity
17 lines
482 B
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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contract SimpleStorage {
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// 存储键值对，现在键为 uint256 类型，值为字符串类型
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mapping(uint256 => string) private keyValue;
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// 设置字符串类型的值
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function set(uint256 key, string memory value) public {
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keyValue[key] = value;
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}
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// 获取字符串类型的值
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function get(uint256 key) public view returns (string memory) {
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return keyValue[key];
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}
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} |