相位封闭原则 2) Enclosed principle 封闭原则 3) open closed principle 开放封闭原则 4) Open-Closed Principle (OCP) 开放封闭原则(OCP) 5) closed principle 封闭原理 1. standardization and modern times management theory-closed principle; 标准化与现代管理理论——封闭原理 ...