CMO是一种基于住房抵押债券而衍生出的金融工具，不计违约风险，其风险主要源于利率风险。该代码通过蒙特卡洛模拟，计算CMO产品的最适价格。-CMO is a kind of financial tool derived the collateral mortgage securities.This series of codes will analyze the pricing process by the perspective of interest rate risk.