mtree.cpp

B-树实现索引和快速查找

#include"Mtree.H"
#include<stdlib.h>
#include<fstream.h>
void main(){
	Btree<int> a(0);int d=1;int min,max,find;
	ifstream fin("in.txt",ios::in|ios::nocreate);
	if(!fin){cout<<"File cannot be open!"<<endl;exit(1);}
	fin>>a;
	cout<<a;
	cout<<"输入要查找的键值: ";
	cin>>find;
	cout<<a.Find(find)<<endl;
	cout<<"输入要查找的键值范围,最小值Min= ";
	cin>>min;
	cout<<"最大值Max= ";
	cin>>max;
	a.FindRange(min,max);
	cout<<endl;
	while(d){
		cout<<"输入将要删除的键值,并以 0 结束 :";
		cin>>d;
		a.Delete(d);
	    cout<<a;
	}
	fin.close();
}