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[抽象语法树的继承 (parser)](%E4%BA%94.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/%E6%8A%BD%E8%B1%A1%E8%AF%AD%E6%B3%95%E6%95%B0%E7%9A%84%E7%BB%A7%E6%89%BF.md) [递归法求抽象语法树](%E4%BA%94.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/%E9%80%92%E5%BD%92%E6%B3%95%E6%B1%82%E6%8A%BD%E8%B1%A1%E8%AF%AD%E6%B3%95%E6%A0%91.md) [表达式树的验证](%E4%BA%94.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%A0%91%E7%9A%84%E9%AA%8C%E8%AF%81.md) [块和语句](%E4%BA%94.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/%E5%9D%97%E5%92%8C%E8%AF%AD%E5%8F%A5.md)