郑板桥是清代著名的诗画家，他不仅有诗、书、画三绝，对于读书法也有精辟独到的见解。一是有记有忘。意思是读书并不是要做到过目不忘，记住所有读到的东西，而是应该记住重要的、需要记住的东西。相反，不需要记住的就可以忘掉。因此，要注意分辨哪些是应该牢记的，哪些是不 Zheng Banqiao is a famous poet and painter in the Qing Dynasty. Not only did he have poetry, books and paintings, but also brilliant ideas for reading. First, there are remember forgotten. The idea is that reading is not about trying to remember, remembering everything you read, but about what's important and what you need to remember. Instead, forget without remembering. Therefore, pay attention to distinguish what should be kept in mind, what is not