try catch还能在嵌套try catch

是的，try catch可以在嵌套try catch中使用。当发生异常时，内层的try catch会首先捕获并处理异常。如果内层的try catch成功捕获并处理了异常，那么外层的catch块将不会执行。如果内层的try catch未能捕获异常，异常将被传递到外层的catch块进行处理。无论异常是否被捕获，内层和外层的finally块都会执行。总之，嵌套的try catch可以提供更灵活的异常处理机制，确保在发生异常时能够进行适当的处理。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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