如何在一個數組列表，讓每一個2數據值

Question

arraylist = [abc, def, ghi, jkl]; 

我應該如何使用爲每個語句得到下面的輸出：

firstdata = abc + def 
seconddata = ghi, jkl 

Answer 1

List<string> newList = new List<string>(); 
int index = 0; 
string newValue = string.Empty; 
foreach (var item in arraylist) 
{ 
    newValue += item; 
    index ++; 
    if(index == 2) 
    { 
     newList.Add(newValue); 
     index == 0; 
    } 
} 

Answer 2

如果你想輸出爲2名獨立的名單，您可以通過using System.Linq

var firstData = arraylist.Where((a, i) => i % 4 == 0 || i % 4 == 1); 
var secondData = arraylist.Where((a, i) => i % 4 == 2 || i % 4 == 3); 

如果你想輸出是一個concaten做到以下幾點ated字符串，可以使用string.Join()

var firstData = string.Join("", arraylist.Where((a, i) => i % 4 == 0 || i % 4 == 1)); 
var secondData = string.Join("", arraylist.Where((a, i) => i % 4 == 2 || i % 4 == 3)); 

Answer 3

var x=1; 
foreach(var item in arraylist){ 
    firstdata += item; 
    x++; 
    if(x>2){ 
     seconddata += item; 
     x=1; 
    } 
}