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zh/ReEntrance.sol

Created January 27, 2023 16:28
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ReEntrance.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;
/**
* @title Guard Contract.
* @author Anthony (fps) https://github.com/0xfps.
*/
abstract contract Guard {
bool locked;
modifier noReentrance {
require(!locked, "Locked");
locked = true;
_;
locked = false;
}
}
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