用正则表达式实现的网页内容扒取程序，基于控制台的应用程序，带命令行参数,使用改源码需要安装boost库-Use regular expressions of the realization of the web page content pick program

华为oj基础训练题，合唱队，共N个人挑出N-K个人，剩下的组成中间高两边递减的合唱队-Huawei oj basic training topic, chorus, a total of N pick N- K individuals, diminishing the rest of the middle high on both sides of the chorus