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July 20, 2022 15:01
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| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.0; | |
| contract Bank { | |
| uint depositAmount = 0; | |
| address payable receiver; | |
| address owner; | |
| event logDepositAmount(uint); | |
| constructor(){ | |
| owner = msg.sender; | |
| } | |
| function deposit(address payable other) payable public{ | |
| require(msg.value > 0, "value must be greater than 0"); | |
| depositAmount += msg.value; | |
| emit logDepositAmount(depositAmount); | |
| receiver = other; | |
| } | |
| function withdraw() public { | |
| require(msg.sender == owner, "sender must be owner"); | |
| emit logDepositAmount(depositAmount); | |
| receiver.transfer(depositAmount); | |
| depositAmount = 0; | |
| } | |
| } |
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