顺序树的基本操作

#include
#include 
#define MaxSize 100
typedef struct BTree{
	char data[MaxSize];
	int n;
}BT;

void CreatBTree(BT &tree,char str1[],int i,int &s)
{
	char ch=str1[s++];
	if(ch==';')
	return ;
	if(ch!='#')
	{
		tree.data[i]=ch;
		CreatBTree(tree,str1,2*i+1,s);
		CreatBTree(tree,str1,2*i+2,s);
	} 
}

void printBTree(BT &tree,int i)
{
	if(tree.data[i]!=';')
	{
		if(tree.data[i]!='#')//是否输出无效数据‘#’ 
	printf("%c",tree.data[i]);
	if(tree.data[2*i+1]!='#'||tree.data[2*i+2]!='#')
	{
		printf("(");
		printBTree(tree,2*i+1);
		printf(",");
		printBTree(tree,2*i+2);
		printf(")");
	}
	}
}

void GetLeaf(BT &tree,int i,int &n)
{	


	if(tree.data[2*i+1]=='#'&&tree.data[2*i+2]=='#')
	{
		if(tree.data[i]!='#')
		{
		n++;
		printf("%c\t",tree.data[i]);
		}
		
	}
		
	
	else
	{
	GetLeaf(tree,2*i+1,n);
	GetLeaf(tree,2*i+2,n);
	}
 } 
  
void getParent(BT &tree,int i)
 {
 	if(tree.data[i]=='#')
 	printf("该节点为空！"); 
 	else{
	 
 	char ch;
 	ch=tree.data[(i-1)/2];
 	printf("%c的双亲结点是%c",tree.data[i],ch);
 }
}
void getChild(BT &tree,int i)
{
	char ch1,ch2;
	

	ch1=tree.data[2*i+1];
	ch2=tree.data[2*i+2];
	if(ch1=='#')
	{
		printf("该树没有左孩子\n");	 
	}
	else
	{
	printf("%c的左孩子是%c",tree.data[i],ch1); 
	}
	if(tree.data[2*i+2]=='#')
	{
		printf("该树没有右孩子\n");
	}
	else
	{
		printf("%c的右孩子是%c",tree.data[i],ch2); 
	}
	
}


void GetEffectiveElem(BT &tree)
{
	if(tree.data[0]=='\0')
	return ;
	printf("有效数据为：\n");
	for(int i=0;i