问题:
1)#include<iostream>
2)usingnamespacestd;
3)intmain()
4){
5)inta,b,result;
6)cout<<"pleaseinputtwonumbers:
";
7)cin>>a>>b;
8)result=3*a-2*b+1;
9)cout<<"resultis"<<result<<endl;
10)}
A . A.1
B . 2
C . 3
D . 4
1)#include<iostream>
2)usingnamespacestd;
3)intmain()
4){
5)inta,b,result;
6)cout<<"pleaseinputtwonumbers:
";
7)cin>>a>>b;
8)result=3*a-2*b+1;
9)cout<<"resultis"<<result<<endl;
10)}
● 参考解析
程序第5行定义了a,b,result三个变量