查找整數

Question

的陣列的平均我有此代碼

Dim intPerson As Integer 

    For Each intPerson In intAge 

    Next 

intPerson每次執行循環，因爲INTAGE是一個數組時間持有不同的數字。有沒有一種方法可以通過每次添加每個數字然後除以數組的數量來找到intPerson的平均值？

Answer 1

最簡單的方法是使用Linq：

'create an array with some sample ages 
    Dim intAge As Integer() = {22, 34, 56, 87, 19} 
    'find the average 
    Dim averageAge = intAge.Average 'averageAge = 43.6 

如果wanto做速記，你可以用數字總結的價值和鴻溝：

Dim totalAges As Integer = 0 
    For i As Integer = 0 To intAge.Count - 1 
     totalAges += intAge(i) 
    Next 
    averageAge = totalAges/intAge.Count 'averageAge = 43.6