如果“try”或“catch”块中有“return”，是否会执行“finally”块？
使用 try-catch-finally 结构来检索数据库记录，似乎我需要在 try 块内返回一个值，以防万一一切正常（就像在异常的情况下）函数并不意味着能够达到）。但是如果我返回到 try 内部，是否会到达 finally 代码（以关闭连接等）？
Using a try-catch-finally construction to retrieve a database record, it seems that I need to return a value inside a try block in case everything was fine (as in case of an exception the end of the function is not meant to be reached). But If I return inside try, is finally code going to be reached (to close the connection etc.)?
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是的，
try/catch表达式的结果将是try或catch块的最后一行，但finally块无论如何都会执行Yes,
The result of the
try/catchexpression will be the last line of either thetryorcatchblock, but thefinallyblock will always execute no matter what是的。
finally的要点是确保执行一些清理代码，无论代码使用什么路径离开try块。它发生在普通返回、抛出并捕获异常时，以及抛出此try块未捕获的异常时。唯一阻止它运行的是程序根本无法离开try块；其中的无限循环，或者进程被某种阻止正常处理发生的方式杀死，或者类似的事情。我非常确定，即使您从try块内部退出进程，finally块也会在进程实际终止之前执行。Yes.
The point of a
finallyis to ensure that some cleanup code is executed no matter what path the code uses to leave thetryblock. It happens on ordinary return, when an exception is thrown and caught, and when an exception is thrown that isn't caught by thistryblock. The only thing that will prevent it running is if the program is unable to leave thetryblock at all; an infinite loop inside it, or the process being killed by some means that prevents this normal processing from happening, or something of that order. I'm pretty sure even if you exit the process from inside thetryblock that thefinallyblock will be executed before the process actually dies.来自 文档：
From the docs: