Evolution Process and Supply Chain Adaptation of Smart Contracts in Blockchain

Algorithm 2

The subcontract function management of the semipublic chain.

	pragma solidity ^0.4.11;
	contract Subcontract{//Subcontract
	struct Container{//Declare a stored data structure
	uint64 CreateTime; uint32 SireId;
	uint16 DataStorage1; uint32 DataStorage2
	uint64 DataStorage3; address DataOwner}
	Container [] container; //Declare an array of stored data
	function save (address_from, data1, data2, data3){
	return SireId }//New data method, return SireId unique identifier
	function update(address_from, sireId, data1, data2, data3){}//Update data method
	function query(address_from, sireId){}//Query data method
	function delete(address_from, sireId){}//Delete data method}
	contract Semi-PublicControl {
	function querySubcontract(address_from, sireId){//Semi-public chain contract query subcontract method
	Subcontractdate = Subcontract.query(address_from, sireId);}}