C# 嵌套同步循环

 1using System;
 2using System.Collections.Generic;
 3using System.Text;
 4
 5namespace ConsoleApplication1
 6{
 7    class Program
 8    {
 9        
10        static void Main(string[] args)
11        {
12            int i = 0;
13            int [] BB = {1,2,3,4};
14            int [] CC = {1,2,3,4};
15
16            foreach(int a in BB )
17            {
18                for (; i < CC.Length;)
19                {
20                    int h = CC[i];
21                    i++;
22                    break;
23                }
24            }
25        }
26    }
27}
28