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如果try语句里有return,返回的是try语句块中变量值。 详细执行过程如下: a.如果有返回值,就把返回值保存到局部变量中; b.执行jsr指令跳到finally语句里执行; c.执行完finally语句后,返回之前保存在局部变量表里的值。 **如果try,finally语句里均有return,忽略try的return,而使用finally的return.