通過geth在測試鏈上部署合約

1.打開testrpc

2.重開一個終端連接到RPC服務

geth attach http://127.0.0.1:8545?

3.新建一個合約??

con = "pragma solidity ^0.4.2; contract test { function add(uint a,uint b) returns(uint c) { return a + b ; } }"

4.進行編譯，編譯器會輸出一個合約對象

compilecon = eth.compile.solidity(con) ?

5.從合約對象中得到code和abi

code = compilecon.code

abi = compilecon.info.abiDefinition

6.然后把合約部署到區(qū)塊鏈上

web3.eth.contract(abi).new({from: eth.accounts[0], data: code},function(err, contract){console.log(contract.address)} )

測試時返回0x579f0c4f3bc489329f0e62ced3334215948cd246這是合約地址

7.裝載一個已部署的合約

address = "0x579f0c4f3bc489329f0e62ced3334215948cd246"

contract? = web3.eth.contract(abi) //創(chuàng)建一個合約對象,用來初始化合約

mycontract = contract.at(address)

8.與合約交互

mycontract.add.call(1,2)