C++ #if elif指令未按预期工作
我正在尝试使用if-elif测试一个条件,但没有得到期望的结果。请帮我找出我做错了什么C++ #if elif指令未按预期工作,c++,C++,我正在尝试使用if-elif测试一个条件,但没有得到期望的结果。请帮我找出我做错了什么 #include <iostream> using namespace std; #define a(t1)(t1+50) #define b(t2)(t2+100) int main() { union gm { int t1; int t2; }; gm c; cout <<"Enter tokens ear
#include <iostream>
using namespace std;
#define a(t1)(t1+50)
#define b(t2)(t2+100)
int main()
{
union gm
{
int t1;
int t2;
};
gm c;
cout <<"Enter tokens earned in game 1: "<<endl;
cin>>c.t1;
int x=c.t1;
cout <<"Enter tokens earned in game 2: "<<endl;
cin>>c.t2;
int y=c.t2;
int m= a(x)+100;
int n= b(y)+50;
int p;
p=m+n;
cout <<p<<endl;
#if(p<500)
cout <<"Points earned too less"<<endl;
#elif (p>500 && p<1500)
cout<<"You can play game 1 free"<<endl;
#elif (p>1500 && p<2500)
cout<<"You can play game 1 free"<<endl;
#elif p>3000
cout<<"You can play game 1 and game free"<<endl;
#endif
return 0;
}
#包括
使用名称空间std;
#定义a(t1)(t1+50)
#定义b(t2)(t2+100)
int main()
{
联合总经理
{
int t1;
int t2;
};
总经理c;
cout不能使用依赖于运行时变量值的预处理器宏
除非将p
定义为预处理器宏
#if(p<500)
不能使用在运行时依赖于变量值的预处理器宏
除非将p
定义为预处理器宏
#if(p<500)
if (p<500)
{
cout <<"Points earned too less"<<endl;
}
else if (p>500 && p<1500)
{
cout<<"You can play game 1 free"<<endl;
}
else if (p>1500 && p<2500)
{
cout<<"You can play game 1 free"<<endl;
}
else if ( p>3000 )
{
cout<<"You can play game 1 and game free"<<endl;
}
else
{
// Do something for everything else.
}