Binary tree
Initial commit
Merge branch 'master' of github.com:ywllx/BinaryTree

First pull from github.com:ywllx/BinaryTree
 Changes to be committed:
 Changes not staged for commit:
 Changes to be committed:
	new file:   BinaryTree/express.c
	new file:   BinaryTree/list.c
	new file:   BinaryTree/list.h
	new file:   BinaryTree/stack.h
change the list_ins_next() function about insert data to the head of the
list
change the list_rem_next() function parameter void *data to void **data
write makefile for complie express
have bug need to fix
Initialize the pointer (eg. allocate the memory space) before you uses
it to avoid segamentation fault.
Attention to the difference of the change of point position of pointers
and assgin values to the variables
Add complie object file traverse.o
Construct a tree and traverse it
Add preorder, inorder and postorder method of the tree
	modified:   BinaryTree/express.c
	fix the each data insert two times bug
	modified:   BinaryTree/express.c
	add check two '$'
delete count
rename directory
rename directory
Merge branch 'master' of github.com:ywllx/study

Conflicts:
	README.md

	deleted:    README.md