Exception in thread "main" java.lang.NullPointerException at test.AdjMGraph.InitateAaj(AdjMGraph.jav

Exception in thread "main" java.lang.NullPointerException at test.AdjMGraph.InitateAaj(AdjMGraph.java:48 at test.AdjMGraph.InitateAaj(AdjMGraph.java:48) at test.Main.main(Main.java:10)) 出错的原因原来是定义数组后没

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