我使用带有c#的swiprolog作为前端。我想在mmessagebox中显示是否执行查询。所以我需要回答“真实”的问题。或者' false'喜欢它来自prolog控制台。这是我的代码:
static void Main(string[] args)
{
Environment.SetEnvironmentVariable("SWI_HOME_DIR", @"C:\Program Files\swipl");
Environment.SetEnvironmentVariable("PATH", @"C:\Program Files\swipl");
Environment.SetEnvironmentVariable("PATH", @"C:\Program Files\swipl\bin");
string p1 = @"C:\Program Files\swipl\try9.pl";
string[] p = { "-q", "-f", p1 };
PlEngine.Initialize(p);
try
{
PlQuery q = new PlQuery("get(sam,age(26)).");
// here i need the responce of prolog engine of the above query whether true or false .
Console.ReadLine();
}
catch (PlException ex)
{
Console.WriteLine("exception handeled" + ex.Message);
}
}
答案 0 :(得分:0)
首先让我说明我从未使用过swi-prolog,所以这可能不是你想要的。但我能够阅读文档和样本...... :)
我找到了这个页面:http://www.lesta.de/prolog/swiplcs/Generated/html/M_SbsSW_SwiPlCs_PlQuery__ctor.htm
听起来你可能会想要以下内容。或者至少它可能有助于你开始?
try
{
using (var q = new PlQuery("get(sam,age(26))."))
{
if (q.Solutions == null) // Not sure if this is possible?
{
Console.WriteLine("Query did not run successfully.");
}
else
{
Console.WriteLine("Query returned {0} items.", q.Solutions.Count());
}
}
}
catch (PlException ex)
{
Console.WriteLine("Exception handled: " + ex.Message);
}
Console.ReadLine();