比較並計算第一，第二和第三位

Question

我想找出最有效的方法來計算一個簡單的C＃程序的第一，第二和第三個地方，其目的是找到勝利者，第二名，和第三名，然後顯示他們的名字，然而，我的代碼似乎很容易做到這麼簡單的任務。我是新的，我使用If語句來完成所需的計算，但是，我知道有一個更好的方法。有人能夠啓發我嗎？

這是我目前的代碼，並且在實現了代碼量之後我停止了。

private void calculateButton_Click(object sender, EventArgs e) 
    { 
     // Define Name and Time Variables 
     string runnerone = runnerOneNameTextBox.Text;      // Runner One Name 
     string runnertwo = runnerTwoNameTextBox.Text;      // Runner Two Name 
     string runnerthree = runnerThreeNameTextBox.Text;     // Runner Three Name 
     double runnerOneTime = double.Parse(runnerOneTimeTextBox.Text);  // Runner One Time 
     double runnerTwoTime = double.Parse(runnerTwoTimeTextBox.Text);  // Runner Two Time 
     double runnerThreeTime = double.Parse(runnerThreeTimeTextBox.Text); // Runner Three Time 

     //------------------------------------------------------------------------- 
     // Start of the If statement to calculate who is first, second, and third. 
     //------------------------------------------------------------------------- 

     // FIRST PLACE CODE: 
     if (runnerOneTime > runnerTwoTime && runnerOneTime > runnerThreeTime) // Runner One is greater than everyone 
     { 
      firstPlaceLabel.Text = runnerOneNameTextBox.Text; 
      firstPlaceTrophyLabel.Text = runnerOneNameTextBox.Text; 
     } 
     else if (runnerOneTime == runnerTwoTime && runnerOneTime > runnerThreeTime) // Runner one is equal to runner two 
     { 
      firstPlaceLabel.Text = runnerOneNameTextBox.Text; 
      firstPlaceLabel.Text = runnerTwoNameTextBox.Text; 
      firstPlaceTrophyLabel.Text = runnerOneNameTextBox.Text; 
      firstPlaceTrophyLabel.Text = runnerTwoNameTextBox.Text; 
     } 
     else if (runnerOneTime > runnerTwoTime && runnerOneTime == runnerThreeTime) 
    } 
} 

}

Answer 1

你有三個參賽者名單，所以讓.NET列表排序功能來拯救你：

private class RunnersAndTimes 
{ 
    public string Name {get}; 
    public double Time {get}; 

    public RunnersAndTimes(string name, double time) 
    { 
     Time = time; 
     Name = name; 
    } 
} 
... 
private void calculateButton_Click(object sender, EventArgs e) 
{ 
    var runnersAndTimes = new List<RunnersAndTimes> { 
     new RunnersAndTimes(runnerOneNameTextBox.Text, 
          double.Parse(runnerOneTimeTextBox.Text)), 
     new RunnersAndTimes(runnerTwoNameTextBox.Text, 
          double.Parse(runnerTwoTimeTextBox.Text)), 
     new RunnersAndTimes(runnerThreeNameTextBox.Text, 
          double.Parse(runnerThreeTimeTextBox.Text)) 
    }; 

    var orderedRunners = runnersAndTimes.OrderBy(runner => runner.Time).ToList(); 

    firstPlaceLabel.Text = orderedRunners[0]; 
    secondPlaceLabel.Text = orderedRunners[1]; 
    thirdPlaceLabel.Text = orderedRunners[2]; 
}