vc6不能正常运行 亲 打折问题

#include 

int main() {
    std::cout << "Hello World!\n";
    int num,p;
    std::cout<<"输入消费金额";
    std::cin>>num;
    if(num>=1000&&num<2000)
    p=num*0.95;
    else if(num>=2000&&num<3000)
    p=num*0.9;
    else if(num>=3000&&num<5000)
    p=num*0.85;
    else if(num>5000)
    p=num*0.8;
    else
    {
        std::cout<<"木有折扣"<<std::endl
        <<"优惠后应该付"<<num<<std::endl;        
    }
   }

当输不到2000时正常，超过不能运行？

你只有最后一个else才输出啊，前面没有输出啊

 
#include <iostream>
 
int main() {
    std::cout << "Hello World!\n";
    int num,p;
    std::cout<<"输入消费金额";
    std::cin>>num;
    p = num;
    if(num>=1000&&num<2000)
    p=num*0.95;
    else if(num>=2000&&num<3000)
    p=num*0.9;
    else if(num>=3000&&num<5000)
    p=num*0.85;
    else if(num>5000)
    p=num*0.8;
    else
        std::cout<<"木有折扣"<<std::endl;
               
    std::cout<<"优惠后应该付"<<p<<std::endl; 
   }
 

#include <iostream>
 
int main() {
    std::cout << "Hello World!\n";
    int num,p;
    std::cout<<"输入消费金额";
    std::cin>>num;
    if(num>=1000&&num<2000)
    {p=num*0.95;
    std::cout<<p<<std::endl;
    }
    else if(num>=2000&&num<3000)
    {
      p=num*0.9;
      std::cout<<p<<std::endl;
    } 
    else if(num>=3000&&num<5000)
    {
     p=num*0.85;
     std::cout<<p<<std::endl;
    }
    else if(num>5000)
    {
      p=num*0.8;
    std::cout<<p<<std::endl;
    }
    else
    {
        std::cout<<"木有折扣"<<std::endl
        <<"优惠后应该付"<<num<<std::endl;        
    }
   }
 好了亲