线性表结点的插入和删除算法'作者:Snowcloud
'插入结点
'函数名称: NodeInsert(Pos As Integer, Num As Integer, TableName As Variant, Cnt As Integer) As Boolean
'参数: Pos As Integer要插入结点的位置,Num As Integer要插入的数值,TableName As Variant线性表名称,Cnt As Integer线性表长度
'返回值: BooleanFunction NodeInsert(Pos As Integer, Num As Integer, TableName As Variant, Cnt As Integer) As Boolean
'改变源线性表长度:插入结点后线性表长度加一
ReDim Preserve TableName(UBound(TableName) + 1)
'对线性表中第i个元素到最后一个元素的位置后移一位
For i = (UBound(TableName)) To (Pos + 1) Step -1
If i < 1 Or i > (UBound(TableName)) Then
Insert = False
Exit Function
Else
TableName(i) = TableName(i - 1)
End If
Next
'将要插入的元素放到第i个位置
TableName(i) = Num
'记录改变后的线性表长度
Cnt = UBound(TableName) + 1
Insert = True
End Function'删除结点
'函数名称: NodeDelete(Pos As Integer, TableName As Variant, Cnt As Integer) As Boolean
'参数: Pos As Integer要删除结点的位置,TableName as Variant线性表名称,Cnt As Integer线性表长度
'返回值: Boolean
Function NodeDelete(Pos As Integer, TableName As Variant, Cnt As Integer) As Boolean
'对线性表中第i个元素到最后一个元素的位置前移一位
For i = Pos To (UBound(TableName))
If i < 1 Or i > (UBound(TableName)) Then
Delete = False
Exit Function
Else
TableName(i - 1) = TableName(i)
End If
Next
'改变源线性表长度:删除结点后线性表长度减一
ReDim Preserve TableName(UBound(TableName) - 1)
'记录改变后的线性表长度
Cnt = UBound(TableName) - 1
Delete = True
End Function===============================================
欢迎大家发表看法,有问题的地方大家请指正,谢谢!
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'插入结点
'函数名称: NodeInsert(Pos As Integer, Num As Integer, TableName As Variant, Cnt As Integer) As Boolean
'参数: Pos As Integer要插入结点的位置,Num As Integer要插入的数值,TableName As Variant线性表名称,Cnt As Integer线性表长度
'返回值: BooleanFunction NodeInsert(Pos As Integer, Num As Integer, TableName As Variant, Cnt As Integer) As Boolean
'改变源线性表长度:插入结点后线性表长度加一
ReDim Preserve TableName(UBound(TableName) + 1)
'对线性表中第i个元素到最后一个元素的位置后移一位
For i = (UBound(TableName)) To (Pos + 1) Step -1
If i < 1 Or i > (UBound(TableName)) Then
Insert = False
Exit Function
Else
TableName(i) = TableName(i - 1)
End If
Next
'将要插入的元素放到第i个位置
TableName(i) = Num
'记录改变后的线性表长度
Cnt = UBound(TableName) + 1
Insert = True
End Function'删除结点
'函数名称: NodeDelete(Pos As Integer, TableName As Variant, Cnt As Integer) As Boolean
'参数: Pos As Integer要删除结点的位置,TableName as Variant线性表名称,Cnt As Integer线性表长度
'返回值: Boolean
Function NodeDelete(Pos As Integer, TableName As Variant, Cnt As Integer) As Boolean
'对线性表中第i个元素到最后一个元素的位置前移一位
For i = Pos To (UBound(TableName))
If i < 1 Or i > (UBound(TableName)) Then
Delete = False
Exit Function
Else
TableName(i - 1) = TableName(i)
End If
Next
'改变源线性表长度:删除结点后线性表长度减一
ReDim Preserve TableName(UBound(TableName) - 1)
'记录改变后的线性表长度
Cnt = UBound(TableName) - 1
Delete = True
End Function===============================================
欢迎大家发表看法,有问题的地方大家请指正,谢谢!
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谢谢大家支持啊!
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