【solidity】继承重载和多重继承(12)
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这篇文章简单的整理了继承重载和多重继承相关的内容。
1.继承重载
pragma solidity ^0.4.0;
contract father {
    uint public money = 10000;
    function dahan() pure public returns(string) {
        return "dahan-father";
    }
}
contract son is father {
    uint public money = 99;
    function getMoney() view public returns(uint){
        return money; // 99 继承重载
    }
    // 函数继承重载
    function dahan() pure public returns(string) {
        return "dahan-son";
    }
    function testDahan() pure public returns(string) {
        return dahan(); // dahan-son
    }
}
2.多重继承
pragma solidity ^0.4.0;
contract father {
    uint public money = 10000;
    uint public height = 180;
    function returnAB() pure public returns(string){
        return "A";
    }
}
contract mother {
    uint public height = 150;
    function returnAB() pure public returns(string){
        return "B";
    }
}
contract son is father, mother {
    // uint public height = 170; 自己有的属性会覆盖继承过来的属性
    // 同一个属性继承,后面的属性会覆盖前面的属性
    function getHeight() view public returns(uint){
        return height; // 150
    }
    // 同一个function继承,后面的属性会覆盖前面
    function test() pure public returns(string){
        return returnAB(); // B
    }
}
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