分而治之方法与软件设计的模块化方法非常相似。为了解决一个大的问题，可以： 1) 把它分成两个或多个更小的问题； 2) 分别解决每个小问题； 3) 把各小问题的解答组合起来，即可得到原问题的解答。小问题通常与原问题相似，可以递归地使用分而治之策略来解决。-divide and rule method and the modular software design methods are very similar. In order to solve a big problem, it may : 1) it is divided into two or more smaller; 2), respectively solve every small problem; 3) the small questions, the answers themselves, the original question can be answered. Usually with small problems similar to the original question, can be recursive use of divide-and-rule strategy to solve.