Li Yongle's book is very classic, but because of his age, it is estimated that this book has not been revised for several years, and many contents are old-fashioned. Just look at the outline.
Wenhai's books are basically good. Although I applied for a diamond card in Wenhai, I still feel cheated, which is not very valuable. You can use this book to check for leaks and fill gaps, but don't use it as the main material, it will be disastrous.
If you want to read the whole book, you still need to read the textbook, because the accumulation of more basic knowledge in the textbook is still a gradual process. Objectively, you need to know how the basic theorem comes from. For example, we 10 didn't do well in the postgraduate entrance examination, so we can only do math sets, which is bound to suffer a big loss.
The theorem of the textbook proves that it is necessary to carefully look at the original title of the group leader of this year's postgraduate entrance examination, and the results are very good.
Even if you don't understand these basic methods, you still have to master them firmly.
Again, remember to read the exam outline carefully to avoid anxiety and high goals.
Believe in yourself, every drop of sweat will bear beautiful fruit.