量化合约及合约量化系统开发成熟技术及源码案例

量化交易也是一种交易。狭义上的量化交易指将交易条件转化为程序，并自动下单；广义的量化交易是系统交易方式，是一种综合交易系统，根据一系列交易条件，智能决策系统，将丰富的经验与交易条件相结合，管理交易过程中的风险控制。 import json from web3 import Web3, HTTPProvider #from web3.contract import ConciseContract ## 获取合约的abi def getAbi(filePath):开发案例及源码I35软件7o98详细o7I8   with open(filePath,'r') as abi_file:     mpc_abi = json.load(abi_file)   return mpc_abi ## 获取余额 def getBalance(contractObj,accountAddr):   return contractObj.functions.balanceOf(accountAddr).call() ## 获取合约对象 def getContractObj(web3Obj,contractAddr,abiPath):   con_abi = getAbi(abiPath)   return web3Obj.eth.contract(address=contractAddr,abi=con_abi) 模式开发：mrsfu123 ## 发送ERC20 def sendErc20(web3obj,fromAddr,toAddr,value,contractAddr,abiPath):   contractAbi = getAbi(abiPath)   contractObj = web3obj.eth.contract(address=contractAddr,abi=contractAbi)   tx_hash = contractObj.functions.transfer(toAddr,value).transact({'from':fromAddr})   tx_receipt = web3obj.eth.wait_for_transaction_receipt(tx_hash)   if tx_receipt['status'] == 1:     return 'send Success'   else:     return 'send Failed' def printBalance(web3obj,contractObj,fromAddr,toAddr,markIndex):   balanceA = getBalance(contractObj,fromAddr)   balanceB = getBalance(contractObj,toAddr)   fromMark = markIndex+" balanceA="   toMark = markIndex+" balanceB="   print(fromMark,web3obj.fromWei(balanceA,'ether'))   print(toMark, web3obj.fromWei(balanceB,'ether')) ##### 发送ERC20 ###### # web3.py instance w3 = Web3(HTTPProvider("http://localhost:8545")) print('web3 connect:',w3.isConnected()) fromAddr = w3.eth.accounts[0] toAddr = w3.eth.accounts[1] print('fromAddr=',fromAddr) print('toAddr =',toAddr) value = w3.toWei(0.1,'ether') abiPath = './myabi/DPC_abi.json' contractAddr = '0xE250d901baeCb66F85D184D8aE9dA2bD4e705854' ##DPC合约地址 contractObj = getContractObj(w3,contractAddr,abiPath) ## 发送前 printBalance(w3,contractObj,fromAddr,toAddr,"#1") bRet = sendErc20(w3,fromAddr,toAddr,value,contractAddr,abiPath) print('result= ',bRet) ## 发送后 printBalance(w3,contractObj,fromAddr,toAddr,"#2") import json from web3 import Web3, HTTPProvider #from web3.contract import ConciseContract ## 获取合约的abi def getAbi(fil