Ecfg is a layered cfg where nodes refer to methods rather than statements . a new metrics - extended cyclomatic complexity e - cc is developed which is analogous to mccabe s cyclomatic complexity and refers to the number of independent execution paths within the oo software 本文还提出一个类似于mccabe的圈复杂度cc的新量度方法扩展圈复杂度ecc ,其扩展圈复杂度表示在面向对象软件中的独立执行路径的数量。