Java中報No enclosing instance of type test is accessible. Must qualify the allocation with an enclosin

  我的代碼如下 第十行報錯  No enclosing instance of type test is accessible. Must qualify the allocation with an enclosing instance of type test (e.g. x.new A() where x is an instance of test). 譯文是:沒有封閉的實例類型測試是可
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