Web3j is a highly modular, reactive, type safe Java and Android library for working with Smart Contracts and integrating with clients (nodes) on the Ethereum network.
实践Termux
Termux is an Android terminal emulator and Linux environment app that works directly with no rooting or setup required. A minimal base system is installed automatically - additional packages are available using the APT package manager.
实践Aid Learning
读书之《道氏理论》
读书之《缠论》
读书之《缠中说禅》
读书之《波浪理论》
读书之《江恩股市趋势理论》
关于PCI
PCI (Payment Card Industry) 是支付卡行业的综合安全标准体系，是全球支付安全的重要基石。
关于PCI PTS
PCI PTS (Payment Card Industry PIN Transaction Security) 是支付卡行业针对PIN交易安全制定的重要标准体系。