我的代码看起来有点像这样，但这是一个简化版本:A类:publicclassA{publicvoidtestArgs(Aa){System.out.println("A");}publicvoidtest(){System.out.println("A");}}B类:publicclassBextendsA{publicvoidtestArgs(Ba){System.out.println("B");}publicvoidtest(){System.out.println("B");}}主类:publicclassMain{publicstaticvoidmain(String[]arg