△要把思想集中到画上来,在家里想,出外也想,走在路上看到一棵树,有一个节疤,回想以前是否在画里看到过,他们是怎样表现的,我怎样去表现它,要多想。△真的树是左右前后都出枝的,切不可像夹在书本里的植物标本。树干要有结构组织,看去不是平扁的。树的节疤要有疏密,不可排匀,干上的皴就从节疤上生发开来,要层层转去, △ to concentrate on the idea of ​​drawing, thinking at home, go out and think, walking on the road to see a tree, there is a knot, think back in the painting have seen before, how they behaved, how do I go Show it, think more. △ True tree is about around the branches, must not be caught in the books of the plant specimens. The trunk must have a structure and structure that looks flat. The knot scar of the tree should have density, can not be arranged evenly, the stem that grows on the hair grows from the knot open, want to turn to every layer,