Irara oneleo

oneleo / ChunghwaTelecomToken.sol

Last active December 9, 2018 08:47

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	pragma solidity >0.3.99 <0.6.0;

	/**
	* @title SafeMath
	* @dev Math operations with safety checks that revert on error
	*/
	library SafeMath {
	/**
	* @dev Multiplies two numbers, reverts on overflow.
	*/

oneleo / Bank.sol

Created November 13, 2018 16:11

	pragma solidity ^0.4.25;

	contract Bank {
	// 此合約的擁有者。
	address private _owner;

	// 儲存所有會員的 ether 餘額。
	mapping (address => uint256) private _balance;

	// 儲存所有會員的 bank coin 餘額。