我只是想知道是否有可能通过使用I / O将这个c ++代码概念转换为prolog?如果可能的话,怎么样?因为据我所知,prolog不是一种强大的编程语言,所以我们一次只能输入一个输入,但是在prolog中使用I / O,也许我们可以搜索文件中的输入。
#include <iostream>
using namespace std;
int main ()
{
int i, x;
int id[5];
cout << "Please enter an integer value: ";
cin >> i;
cout << "The value you entered is " << i<<"\n";
for(x=0; x<i;x++){
cout << "Enter id: ";
cin>>id[x];
}
for(x=0; x<i;x++){
cout << "\nYou have enter id "<<x+1<<": "<<id[x];
}
cout<<"\n";
system("pause");
return 0;
}
答案 0 :(得分:3)
有几种方法可以编写Prolog中显示的示例程序。一种简单的方法是:
main :-
write('Please enter an integer value: '),
read(N),
integer(N),
N > 0,
length(L, N),
maplist(read_n, L),
write_list(L).
read_n(N) :-
write('Enter id: '),
read(N),
integer(N).
write_list(L) :-
write_list(L, 1).
write_list([], _) :- nl.
write_list([H|T], N) :-
format('~nYou have entered id ~w: ~w', [N, H]),
N1 is N + 1,
write_list(T, N1).
试运行:
| ?- main.
Please enter an integer value: 4.
Enter id: 5.
Enter id: 6.
Enter id: 3.
Enter id: 6.
You have entered id 1: 5
You have entered id 2: 6
You have entered id 3: 3
You have entered id 4: 6
yes
| ?-