在for循环中加上随机生成的数字的总和

Question

class Class1 
{ 

[STAThread] 
    static void Main(string[] args) 
    { 

    int lap, avg = 0; 
    double time = 0; 
    Random generator = new Random(); 
    time = generator.Next(5, 10); 


    for (lap = 1; lap <= 10; lap++) 

    { 

    time = (generator.NextDouble())* 10 + 1; 
    Console.WriteLine("Lap {0} with a lap time of {1} seconds!!!!"lap,time.ToString("##.00")); 

    }// end for 

    Console.WriteLine("The total time it took is {0}",time); 
        Console.WriteLine(); 
    Console.WriteLine(); 
    Console.WriteLine(); 
    Console.WriteLine("Slap the enter key to continue"); 
    Console.ReadLine(); 
    } 
} 
} 

我想教自己的c＃，但是这个问题真的让我感到莫名其妙。我如何每次通过循环添加时间变量以获得所有十圈的总和？任何帮助，将不胜感激谢谢:)

Answer 1

如果我没有得到你，你就需要引入新的变量，以保持总时间：

class Program 
{ 
    [STAThread] 
    static void Main(string[] args) 
    { 
     int lap, avg = 0; 

     Random generator = new Random(); 

     double time = generator.Next(5, 10); 
     double totalTime = 0.0; 

     for (lap = 1; lap <= 10; lap++) 
     { 
      time = (generator.NextDouble())* 10 + 1; 
      Console.WriteLine("Lap {0} with a lap time of {1:##.00} seconds!!!!", 
       lap, time); 

      totalTime += time; 
     } 

     Console.WriteLine("The total time it took is {0}", totalTime); 
     Console.WriteLine(); 
     Console.WriteLine(); 
     Console.WriteLine(); 
     Console.WriteLine("Slap the enter key to continue"); 
     Console.ReadLine(); 
    } 
} 

Answer 2

您需要包括time在以前的价值你加成。

time = time + (generator.NextDouble())* 10 + 1;

或

time += (generator.NextDouble())* 10 + 1;

当然，这将导致你失去当前计算的随机数。因此，您应该创建另一个变量sumTime，它将存储所有time值的总和。