kotlin异常处理try-catch-finally
fun main(args: Array<String>) {try {println("a")} catch (e: Exception) {//异常捕获println("a-catch: $e")} finally {//善后，无论是否异常，都会执行println("a-finally")}try {println("b")throw RuntimeException("b发生异常")} catch (e: Exception) {//异常捕获println("b-catch: $e")} finally {//善后，无论是否异常，都会执行println("b-finally")}
}
a
a-finally
b
b-catch: java.lang.RuntimeException: b发生异常
b-finally
