智能合约部署和调用留档

REMIX部署和调用:

REMIX部署，web3.py调用——
调用代码：

# This is a sample Python script.
import json

import web3
from web3.middleware import geth_poa_middleware

# Press Shift+F10 to execute it or replace it with your code.
# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.
wb3 = web3.Web3(web3.HTTPProvider('http://127.0.0.1:8545'))
wb3.middleware_onion.inject(geth_poa_middleware, layer=0)


def print_hi(name):
    # Use a breakpoint in the code line below to debug your script.
    print('Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.


def _load_contract_instance(contract_address, abi_code):
    """加载合约实例"""

    contract_instance = wb3.eth.contract(
        address=contract_address,
        abi=abi_code
    )
    return contract_instance


def is_conneteed():
    if wb3.isConnected():
        print('已连接')
    else:
        print('Fail')


def get_block_info(num):
    print(wb3.eth.get_block(num))


def transact(contract_address, contract_abi, function_name, **kwargs):
    account_address = '0x1901300c3e828D84651c2bA9CAA21Db60195C2F4'
    account_private_key = 'd2f868426f1ddd0dd5e34bff20970ab32a3735e0b391623937ee145f0fb0b5d7'
    contract_instance = _load_contract_instance(contract_address, contract_abi)
    nonce = wb3.eth.get_transaction_count(account_address)
    fn_name = contract_instance.get_function_by_name(function_name)
    tx = fn_name(**kwargs).buildTransaction({
    
    
        'chainId': 981027,
        'from': account_address,
        'nonce': nonce,
        'gas': 2000000,
        'gasPrice': 20 * 10 ** 8
    })
    signed = wb3.eth.account.sign_transaction(tx, account_private_key)
    tx_hash = wb3.toHex(wb3.eth.send_raw_transaction(signed.rawTransaction))
    tx_receipt = wb3.eth.waitForTransactionReceipt(tx_hash)
    return tx_receipt


def call(
        contract_address,
        abi_code,
        function_name,
        *args,
        **kwargs):
    """合约查询放方法"""
    # 获得合约实例
    contract_instance = _load_contract_instance(contract_address, abi_code)
    # 获得方法
    fn_name = contract_instance.get_function_by_name(function_name)

    return fn_name(*args, **kwargs).call()


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    # print_hi('PyCharm')
    # is_conneteed()
    # get_block_info(40)
    contract_address = '0x5a468bcAF4B4Cb96ED116454b3de3b64C7459595'
    abi = '[ { "inputs": [ { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "store", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "ValueChanged", "type": "event" }, { "inputs": [], "name": "retrieve", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" } ]'

    # result = transact(
    #     contract_address=contract_address,
    #     contract_abi=json.loads(abi),
    #     function_name='store',
    #     value=158
    # )
    # print(result)

    result = call(
        contract_address=contract_address,
        abi_code=json.loads(abi),
        function_name='retrieve'
    )
    print(result)
# See PyCharm help at https://www.jetbrains.com/help/pycharm/