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View Centos7安装abigen.md
# 下载源码
https://github.com/ethereum/go-ethereum/releases
# 解压源码:
tar -xzf go-ethereum-1.9.7.tar.gz 
# 编译:
cd go-ethereum-1.9.7
View 虚拟机断电后centos7无法正常启动.md

虚拟机断电后centos7无法正常启动:

报错消息:

20220908162422 需要先umount,再执行xfs_repair命令

umount /dev/dm-0
View Remix_Ide_Load_From_localFolder.md

Remix_Ide_Load_From_localFolder:

# 全局安装
npm install -g @remix-project/remixd
# 启动
remixd -s 具体文件项目路径 --remix-ide https://remix.ethereum.org/

Example:

View KILLAz.sol
/**
*Submitted for verification at Etherscan.io on 2021-08-18
*/
pragma solidity >=0.6.0 <0.8.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct