由于可以存在多个锁,不同的线程持有不同的锁,并试图获取对方持有的锁时,可能会造成死锁,如下: #coding=utf-8 import threading import time class MyThread1(threading.Thread): def run(self): if mutexA.acquire(): print(+'----do1---up----') time.sleep(
# -*- coding: utf-8 -*- ''' Created on 2018年3月11日 @author: Jason niu ''' import hashlib #该模块实现了诸多安全哈希和消息摘要算法的通用接口,包括 FIPS 安全哈希算法: SHA1、SHA224、 SHA256、SHA384、RSA的 MD5 等等算法 import uuid #通用唯一标识符 ( Universally Unique Identifier ), 对...
blockchain-python-cheat-sheet包含哪些关键函数? 文章目录 地址正则表达式汇总 bytes 转为 string BTC 交易数据解析 USDT 交易 精度转换 地址正则表达式汇总 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # BTC 正则_pattern = r'^(([13][a-km-zA-HJ-NP-Z0-9]{26,33},*)|(bc(0([ac-hj-np-...
Carlos-Zen/blockchain-pythonPublic Notifications Fork82 Star255 master BranchesTags blockchain-python/miner.py/ Jump to carlosrename Latest commit1a69afeJun 15, 2018History 0contributors 62 lines (56 sloc)1.66 KB RawBlame # coding:utf-8
Signing data in blockchain From linked list to blockchain Cryptography Symmetric and asymmetric cryptography The hashing function Proof of work Consensus Coding on the blockchain Other types of blockchain programmers Summary References Smart Contract Fundamentals Installing an Ethereum development environment...
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https://delcoding.github.io/2018/04/ddctf-writeup4/ https://xz.aliyun.com/t/2299 https://www.360zhijia.com/anquan/375753.html 下面是攻击脚本,出自上面第一个大佬,修改一下钱包地址,就可以直接打了 + View Code 运行结果,如果不出差错的话,可以直接获得flag ...
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