種樹游戲系統(tǒng)開發(fā)（詳情及規(guī)則）丨區(qū)塊鏈DAPP種樹游戲系統(tǒng)開發(fā)（方案及項目）/源碼版
從學(xué)術(shù)角度來解釋，區(qū)塊鏈是分布式數(shù)據(jù)存儲、點對點傳輸、共識機制、加密算法等計算機技術(shù)的新型應(yīng)用模式。
區(qū)塊鏈本質(zhì)上是一個去中心化的數(shù)據(jù)庫。
The blockchain system verifies all data generated during the period every 10 minutes(such as transaction records and records of when the block was edited or created),并將這些數(shù)據(jù)儲存在一個新的區(qū)塊上，這個區(qū)塊會與前一個區(qū)塊連接，從而形成一根鏈條。每個區(qū)塊都必須包含前一區(qū)塊的相關(guān)信息才能生效。
#連接一個Kovan測試網(wǎng)上的用來計算支持接口常量值的智能合約
from web3.auto.infura.kovan import w3
#合約ABI。注意，這里所有的true和false要替換成python的True和False
contract_abi=[
{
"constant":True,
"inputs":[
{
"internalType":"string",
"name":"signature",
"type":"string"
}
],
"name":"getSelector",
"outputs":[
{
"internalType":"bytes4",
"name":"",
"type":"bytes4"
}
],
"payable":False,
"stateMutability":"pure",
"type":"function"
},
{
"constant":True,
"inputs":[
{
"internalType":"bytes4[]",
"name":"selectors",
"type":"bytes4[]"
}
],
"name":"getSupportedInterface",
"outputs":[
{
"internalType":"bytes4",
"name":"",
"type":"bytes4"
}
],
"payable":False,
"stateMutability":"pure",
"type":"function"
}
]
#Kovan測試網(wǎng)上合約地址
contract_address='0x07d74Cf0Ce4A1b10Ece066725DB1731515d62b76'
#構(gòu)造合約對象
CalSelector=w3.eth.contract(address=contract_address,abi=contract_abi)
