Question

asp.net两个数组的并集

有
string[] str1={"a","b","d"}
string[] str2={"a","c","d","e"}

如果求得string[] str3={"a","b","c","d","e"}

Answer 1

直接用LINQ的扩展方法很蠢神简单，

using System; 
using System.Linq;
 
static void Main()
{
  碧档升 string[] str1={"a","悔老b","d"};
   string[] str2={"a","c","d","e"};
   // or str3 = str1.Union(str2).ToArray(); 
   string[] str3 = str1.Concat(str2).Distinct().ToArray();
   foreach(string c in str3)
      Console.WriteLine(c);
}

输出：

a
b
d
c
e

Answer 2

			usin System.Linq;
			string[] str1 = 纤纤{ "a", 皮竖氏"燃散b", "d" };
			string[] str2 = { "a", "c", "d", "e" };

			var query = str1.Union(str2).ToArray();

			foreach (string str in query)
			{
				Console.WriteLine(str);
			}