Ethereum Smart Contract Tutorial (ii) HelloWorld

The smart contract code for this article is deployed in the above mentioned Ethernet private chain.

Smart Contract Editor:

browser-solidity: This project is the Intelligent contract browser version of the development environment, can support in the browser directly development, debugging and compilation, for beginners, can quickly get started, do not need to install, very convenient, direct access to address use: https:// ethereum.github.io/browser-solidity/, this article uses this IDE for development.

Contract Code:

It means:

Using the solidity 0.4 version programming language

Set storeddata value, get Storeddata value

pragma solidity ^0.4.11;

Contract Simplestorage {

Uintstoreddata;

function set (UINT x) {

Storeddata = x;

}

function get () constant returns (UINT RetVal) {

return storeddata;

}

}

This time is not to see the deployment of the smart contract, switch to the Geth interface, mining, after 12 blocks, the smart contract can be confirmed and displayed.