重复列表条目的 C# 问题

Question

嘿伙计们，我有一个程序，我正在将所有行加载到一个文本框中，并将它们从 char :

中拆分出来

它工作正常，但它复制了它。我得到的输出是:

ID: 1NAME: Stone
ID: 1NAME: Stone
ID: 2NAME: Grass
ID: 2NAME: Grass
ID: 3NAME: Dirt
ID: 3NAME: Dirt

什么时候输出应该是:

ID: 1NAME: Stone
ID: 2NAME: Grass
ID: 3NAME: Dirt

我的代码是:

    foreach (String line in File.ReadAllLines("item.ids"))
    {
        items = line.Split(':');


        foreach (String part in items)
        {
            addToList(specs, "ID: "+line.Split(':').First() + "NAME: "+line.Split(':').Last() );
        }
    }

我做错了什么？

Answer 1

我认为你需要为每一个松开内部。 保持对 addToList 的调用，不过

// for every line in the file....
foreach (String line in File.ReadAllLines("item.ids"))
{
   //get the parts by splitting the line on the colon
   items = line.Split(':');

   //for every item in the parts (there are two parts, according to your code)
   // so this will loop twice--adding your item twice
   foreach (String part in items)
   {

     // you are splitting again, and this is not necessary
     // you could just call items.First() or items[0]
     // and items.Last() or items[1]
     addToList(specs, "ID: "+ line.Split(':').First() + 
                      "NAME: "+line.Split(':').Last() );
   }
 }

我会做这样的事情来修复它:

foreach (string line in File.ReadAllLines("item.ids"))
{
   items = line.Split(':');
   addToList(specs, "ID: "  + items.First() + 
                    "NAME: "+ items.Last() );
}