2020-04-13 15:02:21 -04:00
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pragma solidity 0.5.17;
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2019-11-02 04:12:11 -04:00
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2019-08-30 06:06:17 -04:00
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contract ERC20Basic {
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uint public _totalSupply;
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function totalSupply() public view returns (uint);
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function balanceOf(address who) public view returns (uint);
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function transfer(address to, uint value) public;
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event Transfer(address indexed from, address indexed to, uint value);
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}
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/**
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* @title ERC20 interface
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* @dev see https://github.com/ethereum/EIPs/issues/20
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*/
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contract IUSDT is ERC20Basic {
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function allowance(address owner, address spender) public view returns (uint);
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function transferFrom(address from, address to, uint value) public;
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function approve(address spender, uint value) public;
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event Approval(address indexed owner, address indexed spender, uint value);
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}
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