I follow the execution process of this small program: first, I take exp and "\ +" as parameters, call the calculation (String, String) method in the AbstractCalculator class, call split () of the same kind in the calculation (String, String), then call the calculation (int, int) method, enter the subclass from this method, after executing return num1 + num2, return the value to the AbstractCalculator class, assign it to result, and print it out. This just verifies our thinking at the beginning.
这样的两个人如果能双剑合璧，其实堪称完美，然而围绕着启弼带大的孩子，一个要要回，一个坚决不给，于是乎两人针尖对麦芒，搞得硝烟四起，战火纷飞。当然，这源于深深的母爱与父爱间的火花四溅带给人们的是欢笑和感动。
更可恨的是，天启那边每次都能突然冒出一个话题，然后热度爆表，席卷网络。
于是大苞谷命人将马车赶来，众人登车。
大西北的乡村变迁，黄土塬的精神裂变。电影《风从塬上来》以黄土塬农村40年的沧桑巨变为背景，以产业扶贫故事为主线，讲述了一位企业家李军平在扶贫干部杨小刚的帮助下回乡发展黑枸杞产业，带领乡亲们脱贫致富的故事。反映了扎根黄土塬上的企业家李军平、扶贫干部杨小刚和回乡知识青年田玉洁身处变革的历史脚步下，在农村广阔的天地里各自的追求和成长，并最终实现了他们人生的梦想。该片是一部立足西北黄土大塬农村的艺术创作，更是一部对乡村生活的礼赞。
The delegate is a class, which can also be instantiated. The method is assigned to the delegate instance through the constructor of the delegate.
你信不信公道？杨长帆又摇了摇头。
有了兵器在手，就有对付平武的资本。
深夜，韩商言推门走入了一家小网吧。此时，计算机“鬼才”，在读研究生佟年为表弟家看管着网吧。单纯软萌的佟年对韩商言一见钟情。她勇敢，却连他十年前的绯闻女友都不敢细看；她淡然，却因害怕打扰他，连坐在身边偷偷瞄一眼都带着不安；她习惯了大场面，却因他在她微博下的留言而觉得呼吸都要停滞；她接受惯了采访，却在给他打电话时，准备了半天的话题，一个字都想不起来；她那么喜欢他，可是因为觉得对不起，却只能流着泪说分手。就是这样的佟年，打动了不近女色，早已波澜不惊的韩商言，也在韩商言的激励下，佟年重新加入校队，继续国际计算机学会世界编程大赛的比赛。两人各自投入到了夺取冠军的征程，在不同的领域大放异彩。
卢绾仰天长叹，在绝望之中横剑自刎。
果然是老将军醒来了，竟然召集他属下的将士入大校场，看来他已经听说了之前的事。
④ Thread switching cost is very high. When the operating system switches threads, the context of the thread needs to be preserved and then the system call is executed. If the number of threads is too high, it will not only bring many useless context switches, but also may cause the time for thread switching to be performed to be even longer than the time for thread execution. At this time, the performance is often that the system load is too high and the utilization rate of CPU SY (system CPU) is extremely high, resulting in the system almost falling into an unavailable state.
当恩里克来到伊格莱西奥的家乡时，秘密一幕幕揭开……
二太太气得浑身哆嗦。
After getting married, Ma Jinyu did not give up his journalism and continued interviews all over the country, while Tashi stayed on the grassland to keep bees until a car accident, which completely changed the fate of the two men.
味蕾上的爱情泰剧。
“小贼”裘水天从云南农村来到昆明，他和同村的裘火贵搭伴来到这座城市，希望能够捞一笔钱衣锦还乡。对裘水天来说，这一切的动力都来源於小香，那个和他从小一起长大，他希望与之共度一生的女孩。
