持有PsiFile实例，怎么获得PsiClass实例？

Hold PsiFile instance, how to get PsiClass instance?

PsiTreeUtil.findChildOfAnyType(currentFile, PsiClass.class);

哥，你在自问自答么

自己找到了答案，IJ IDEA API太少

获取选中的文件
VirtualFile[] virtualFiles = e.getData(CommonDataKeys.VIRTUAL_FILE_ARRAY);
System.out.println(virtualFiles.length);

for (VirtualFile virtualFile : virtualFiles) {
    System.out.println(virtualFile.getChildren());
    VirtualFile[] virtualFiles1 = virtualFile.getChildren();
    System.out.println(virtualFiles1.length);

    //通过VirtualFile获取的PsiFile对象
    PsiFile psiFile = PsiManager.getInstance(e.getProject()).findFile(virtualFile);
    //通过PsiFile获取PsiClass
    final PsiClass psiClass = PsiTreeUtil.findChildOfAnyType(psiFile.getOriginalElement(), PsiClass.class);
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