摘要: 1 echo 和 @回显命令 @ #关闭单行回显 echo off #从下一行开始关闭回显 @echo off #从本行开始关闭回显。一般批处理第一行都是这个 echo on #从下一行开始打开回显 echo #显示当前是 echo off 状态还是 echo on 状态 echo. #输出一个”回 阅读全文
posted @ 2021-12-24 15:43 zhihua 阅读(1419) 评论(0) 推荐(0) 编辑
摘要: INSTALLATION Use one of the following methods to install Package Control: Command Palette Open the command paletteWin/Linux: ctrl+shift+p, Mac: cmd+sh 阅读全文
posted @ 2021-12-21 18:44 zhihua 阅读(16) 评论(0) 推荐(0) 编辑
摘要: 1.node.js安装 https://nodejs.org/zh-cn/download/ 测试安装成功与否:node -v 2.python安装 https://www.python.org/downloads/release/python-3101/ 注意加入环境变量 测试安装成功与否: cm 阅读全文
posted @ 2021-12-21 17:38 zhihua 阅读(359) 评论(0) 推荐(0) 编辑
摘要: vi编辑操作 #查看进程|筛选关键字进程 ps -aux | ps -ef |grep tomcat #文件或文件夹授权 chmod 777 [dirname] #查看占用端口的pid: lsof -i: port#杀死占用端口的进程: kill -9 pid#查看日志文件 tail -f geth 阅读全文
posted @ 2021-12-12 12:20 zhihua 阅读(18) 评论(0) 推荐(0) 编辑
摘要: 一般要求服务器:4核-8G-500G [root@localhost opt]# cat /etc/redhat-releaseCentOS Linux release 7.5.1804 (Core) Go Ethereum下载安装 下载地址:https://geth.ethereum.org/do 阅读全文
posted @ 2021-12-11 23:34 zhihua 阅读(620) 评论(0) 推荐(0) 编辑
摘要: 下载并安装Net4.6.1 根据提示下载如下,并安装 https://support.microsoft.com/zh-cn/help/2919355/windows-rt-8-1--windows-8-1--and-windows-server-2012-r2-update-april-2 无法启 阅读全文
posted @ 2021-06-18 09:47 zhihua 阅读(788) 评论(0) 推荐(0) 编辑
摘要: 最耗时的sql DECLARE @n INT; SET @n = 500; WITH cte1 AS ( SELECT a.* , t.* FROM sys.dm_exec_query_stats a CROSS APPLY sys.dm_exec_sql_text(a.plan_handle) t 阅读全文
posted @ 2020-10-23 16:11 zhihua 阅读(159) 评论(0) 推荐(0) 编辑
摘要: pragma solidity ^0.4.19; /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, 阅读全文
posted @ 2020-09-15 11:51 zhihua 阅读(189) 评论(0) 推荐(0) 编辑
摘要: /** *Submitted for verification at Etherscan.io on 2017-11-28*/ pragma solidity ^0.4.17; /** * @title SafeMath * @dev Math operations with safety chec 阅读全文
posted @ 2020-09-12 19:05 zhihua 阅读(453) 评论(0) 推荐(0) 编辑
摘要: Public API Endpoints Mainnet Chain_id: aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906 Every block producer publishes a bp.json file 阅读全文
posted @ 2019-09-18 17:04 zhihua 阅读(2047) 评论(0) 推荐(0) 编辑