In someMethod, the call to toString will end up jumping to code that is entirely controlled by the object that is passed in as an argument. The CPU (or in this case, JVM) will lookup the location of toString on whatever type of object it is, and jump there.
一次走访中，张晋丰发现刘洪兰担心订单收购价格低。他当场掏出手机，调出“榨菜产业大脑”里的历史价格数据和当年的保底价政策，一五一十地算账对比，直到刘洪兰连连点头：“张主任，听你的，就按订单走！”
。体育直播对此有专业解读
To test this I built gitgres, about 2,000 lines of C implementing the libgit2 git_odb_backend and git_refdb_backend interfaces against Postgres through libpq, plus roughly 200 lines of PL/pgSQL for the storage functions. libgit2 handles pack negotiation, delta resolution, ref advertisement, and the transport protocol while the backend reads and writes against the two tables, and a git remote helper (git-remote-gitgres) lets you add a Postgres-backed remote to any repo and push or clone with a normal git client that has no idea it’s talking to a database. There’s a Dockerfile in the repo if you want to try it out without building libgit2 and libpq from source.
作为一名歼—16飞行员，王文毅最真切的感受是：基层部队战备训练抓得越紧，打仗能力就越强。他回忆起参加远海长航时任务的场景：“当战机加力升空，翼下的农田、村庄渐渐变小，空中的复杂态势信息扑面而来，我们根据实时变化的空战场情况，和战友‘背对背’展开攻防。”