솔리디티 스마트컨트렉트 example

솔리디티 example

https://remix.ethereum.org/#optimize=false

리믹스에서 붙여넣고 실행하면 된다.

pragma solidity ^0.4.21;
 
contract Farm{
 
    struct Animal{
        string name;
        uint age;
        bool mammal;
    }
 
    mapping(address => Animal) public animals;
    address public farmOwner;
    
    event NewAnimal(address animal, string name, uint age, bool mammal);
    
    modifier onlyOwner{
        require(msg.sender == farmOwner);
        _;
    }
    
    constructor() public{
        farmOwner = msg.sender;
    }
    
    function setAnimal(address _address, string _name, uint _age, bool _mammal) public onlyOwner{
        Animal storage animal = animals[_address];
        animal.name = _name;
        animal.age = _age;
        animal.mammal = _mammal;
        
        emit NewAnimal(_address, _name, _age, _mammal);
    }
    
    function getAnimalName(address _address) public constant returns(string name){
        return animals[_address].name;
    } 
    
}
 
 

setter를 여러개 만들면 여러개 생긴다. 분홍색 setAnimal, setAnimal2 이렇게 2가지가 생긴다.

end.