请教一个初级 break 语句的问题

Question

       public static void Main()
        {
            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; i < 10; j++)
                {
                    if (j == 5)
                    {
                        Console.WriteLine("j={0},tm={1}", j,DateTime.Now);
                        break;
                    }
                }
                Thread.Sleep(1000);
                Console.WriteLine("i={0}",i);
            }
            Console.WriteLine("完成" + DateTime.Now);
           Console.ReadLine();
        }
如上面代码，当j == 5时它会退出for (int j = 0; i < 10; j++)的循环，
我想当j == 5时让它退出整个循环（i和j的循环）执行“Console.WriteLine("完成" + DateTime.Now);
”，请问用什么关键字？

Answer 1

跳出两个循环似乎没有什么关键字吧，
要么用goto（我从来不用）
要么把两个循环独立成一个方法，用return退出

Answer 2

用一个变量控制吧
 public static void Main()
        {
            bool tag = false;
            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; i < 10; j++)
                {
                    if (j == 5)
                    {
                        Console.WriteLine("j={0},tm={1}", j,DateTime.Now);
                        tag = true;
                        break;
                    }
                }
                if(tag) break;
                Thread.Sleep(1000);
                Console.WriteLine("i={0}",i);
            }
            Console.WriteLine("完成" + DateTime.Now);
           Console.ReadLine();
        }

Answer 3

或者把j在for外面声明,然后坚持j的值,这样可以少设置控制变量
 

Answer 4

            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; i < 10; j++)
                {
                    if (j == 5)
                    {
                        Console.WriteLine("完成" + DateTime.Now);
                        Console.WriteLine("j={0},tm={1}", j,DateTime.Now);
                        break;
                    }
                }
                Thread.Sleep(1000);
                Console.WriteLine("i={0}",i);
            }

Answer 5

public   static   void   Main() 
                { 
                     for   (int   i   =   0;   i   <   10;   i++) 
                        { 
                                for   (int   j   =   0;   i   <   10;   j++) 
                                { 
                                        if   (j   ==   5) 
                                        { 
                                                Console.WriteLine("j={0},tm={1}",   j,DateTime.Now); 
                                                break; 
                                        } 
                                } 
                                break; 
                                Thread.Sleep(1000); 
                                Console.WriteLine("i={0}",i); 
                        } 
                        Console.WriteLine("完成"   +   DateTime.Now); 
                      Console.ReadLine(); 
                }