如何从一个VB.NET数组中删除一个元素?
这个方法怎么样:
获取一个返回数组的方法,例如 tempArray
tempArray 应该比您的数组少至少 1 个元素,例如 permArray
该方法应该接受一个整数参数(这将是不需要的元素的索引),例如 ommitIndex 和您的 permArray
在该方法中,将除了位置 ommitIndex 外的所有元素从 permArray 复制到 tempArray
该方法返回 tempArray,因此使用该方法更新 permArray。
这是一个代码片段:
Function updateArray(ommitIndex As Integer, array() As String) As Array
Dim tempArray(array.Length - 2) As String
Dim counter As Integer = 0
For i As Integer = 0 To (array.Length - 1)
If (i <> ommitIndex) Then
tempArray(counter) = array(i)
counter += 1
End If
Next
Return tempArray
End Function
看起来比实际要复杂...
Dim myArray As String() = TextBox1.Lines
'First we count how many null elements there are...
Dim Counter As Integer = 0
For x = 0 To myArray.Count - 1
If Len(myArray(x)) < 1 Then
Counter += 1
End If
Next
'Then we dimension an array to be the size of the last array
'minus the amount of nulls found...
Dim tempArr(myArray.Count - Counter) As String
'Indexing starts at zero, so let's set the stage for that...
Counter = -1
For x = 0 To myArray.Count - 1
'Set the conditions for the new array as in
'It .contains("word"), has no value, length is less than 1, ect.
If Len(myArray(x)) > 1 Then
Counter += 1
'So if a value is present, we move that value over to
'the new array.
tempArr(Counter) = myArray(x)
End If
Next
TextBox1.Lines = tempArr (现在你有一个没有空行的文本框)