Arrays vba-循环中的循环冻结excel
我试图做一个循环,通过一个数组(47193,4)和一个名为攻击的数组2(41892,1)。这里的想法是,攻击数组的值按照我稍后要将值添加到下一列的表的顺序排列,这就是我将值添加到第三个数组的原因。因此,循环将逐个遍历攻击数组中的值,同时通过arr数组查找公共数据。我尝试直接将值复制到工作表中,但excel冻结了很多。现在用这种方法,excel仍然冻结在这一点上。有什么问题吗Arrays vba-循环中的循环冻结excel,arrays,vba,excel,Arrays,Vba,Excel,我试图做一个循环,通过一个数组(47193,4)和一个名为攻击的数组2(41892,1)。这里的想法是,攻击数组的值按照我稍后要将值添加到下一列的表的顺序排列,这就是我将值添加到第三个数组的原因。因此,循环将逐个遍历攻击数组中的值,同时通过arr数组查找公共数据。我尝试直接将值复制到工作表中,但excel冻结了很多。现在用这种方法,excel仍然冻结在这一点上。有什么问题吗 Dim arr3() As Variant Dim dee As Long ReDim arr3(UBound(atta
Dim arr3() As Variant
Dim dee As Long
ReDim arr3(UBound(attacks, 1), 1)
For k = 0 To UBound(attacks, 1)
j = 0
For j = 0 To UBound(arr, 1)
If attacks(k, 0) = arr(j, 0) And attacks(k, 1) = arr(j, 2) Then
arr3(dee, 0) = attacks(k, 0)
arr3(dee, 1) = attacks(k, 1)
de = dee + 1
End If
Next j
Next k
下面是一些显示如何使用字典的代码:
Sub Tester()
Const SZ As Long = 10000 'size of test arrays
Dim arr1(1 To SZ, 1 To 2)
Dim arr2(1 To SZ, 1 To 2)
Dim arr3(1 To SZ, 1 To 2) '<<matches go here
Dim n As Long, m As Long, i As Long, t, dict, k
t = Timer
'fill test arrays with random data
For n = 1 To SZ
arr1(n, 1) = CLng(Rnd * 200)
arr1(n, 2) = CLng(Rnd * 200)
arr2(n, 1) = CLng(Rnd * 200)
arr2(n, 2) = CLng(Rnd * 200)
Next n
Debug.Print "Filled test arrays", Timer - t
t = Timer
'test the nested loop approach
For n = 1 To SZ
For m = 1 To SZ
If arr1(n, 1) = arr2(m, 1) And arr1(n, 2) = arr2(m, 2) Then
i = i + 1
arr3(i, 1) = arr1(n, 1)
arr3(i, 2) = arr1(n, 2)
End If
Next m
Next n
Debug.Print "Finished nested loop", Timer - t, i & " matches"
t = Timer
'create a lookup using a dictionary
Set dict = CreateObject("scripting.dictionary")
For n = 1 To SZ
k = arr1(n, 1) & "|" & arr1(n, 2)
dict(k) = dict(k) + 1
Next n
Debug.Print "Filled dictionary", Timer - t
t = Timer
i = 0
Erase arr3
'Perform the match against arr2 using the dictionary
For m = 1 To SZ
k = arr2(m, 1) & "|" & arr2(m, 2)
If dict.exists(k) Then
i = i + 1
arr3(i, 1) = arr2(m, 1)
arr3(i, 2) = arr2(m, 2)
End If
Next m
Debug.Print "Finished dictionary loop", Timer - t, i & " matches"
End Sub
注意#个匹配项略有不同-嵌套循环捕获重复的匹配项,但字典只统计唯一的匹配项。您可能需要根据您的用例进行调整。使用连接键将其中一个数组加载到字典中,然后循环另一个数组,并检查
dictionary.Exists
方法以查找匹配项。这里还有一个输入错误:de=dee+1
我认为您将数据直接放入工作表是正确的,无论是最终工作表还是复制并粘贴到最终工作表的中间工作表。在这里查看我的答案:,特别是顶部和底部我禁用的部分,然后重新启用屏幕更新和计算。这对解决冰冻问题应该有很大帮助。正是出于这个原因,我用这些命令开始和结束每一艘大型潜艇。
Filled test arrays 0
Finished nested loop 9.101563 2452 matches
Filled dictionary 0.03125
Finished dictionary loop 0.0078125 2177 matches