智能合约包含了有关交易的所有信息，只有在满足要求后才会执行结果操作。智能合约和传统纸质合约的区别在于智能合约是由计算机生成的。代码本身解释了参与方的相关义务。
FDF智能合约互助系统开发，FDF智能合约互助软件开发，FDF智能合约互助app开发，FDF智能合约互助商城软件开发，FDF智能合约互助系统模式开发，FDF智能合约互助商城系统开发，FDF智能合约互助系统开发搭建，FDF智能合约互助微商系统模式开发。
事实上，智能合约系统的参与方通常是互联网上的陌生人，受制于有约束力的数字化协议。本质上，智能合约是一个数字合约，除非满足要求，否则不会产生结果。
Proxy.sol
pragma solidity ^0.4.24;/** * @title Proxy * @devGives the possibility to delegate any call to a foreignimplementation. */contract Proxy { /** * @dev Tells theaddress of the implementation where every call will be delegated. * @return address of the implementation to which it will bedelegated */ function implementation() public viewreturns (address); /** * @dev Fallback functionallowing to perform a delegatecall to the given implementation. * This function will return whatever the implementation callreturns */ function () payable public { address _impl = implementation(); require(_impl!= address(0)); assembly { let ptr:= mload(0x40) calldatacopy(ptr, 0,calldatasize) let result := delegatecall(gas,_impl, ptr, calldatasize, 0, 0) let size :=returndatasize returndatacopy(ptr, 0, size) switch result case 0 {revert(ptr, size) } default { return(ptr, size)} } }}