vb.net查找数组 vb 查找函数

vb.NET一个找出数组最大最小值的程序有个小问题 谁看一下你是不是应该对最大值和最小值赋初值(比如把 r(1) 赋给最大值和最小值)呢?不然最小值默认初始值是‘0’vb.net查找数组,后面的判断就不起作用vb.net查找数组了 。你可以加个断点试试,他们的初始值是多少 。。。
vb.net 根据给定条件判断该内容是否在数组中,并读取该条数组【vb.net查找数组 vb 查找函数】Imports System.IO
Imports System.Collections
Imports System.Text
Public Class Form1
Dim InfoList As New ArrayList
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim fs As New FileStream("c:\1.txt", FileMode.Open, FileAccess.Read, FileShare.None)
Dim fw As New StreamReader(fs, Encoding.Default)
Do Until fw.EndOfStream
InfoList.Add(fw.ReadLine)
Loop
fw.Close()
fs.Close()
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim tmp As String, a As Integer
a = -1
tmp = TextBox1.Text
For i = 0 To InfoList.Count - 1
If InStr(InfoList.Item(i).ToString, tmp)0 Then a = i : Exit For
Next
If a = 0 Then TextBox2.Text = InfoList.Item(a)
End Sub
End Class
在asp VB.NET怎么查找一维数组中特定字符串先遍历数组:
for i = 0 to Ubound(数组)
...
next
再把中间的...替换成:
if 数组(i) = 特定的字符 then msgbox "找到鸟,当前是:数组"i
VB.NET 找出数组中相同的元素 , 并按相同元素排序到另外一个数组中 。先把strA排序vb.net查找数组,
ind = 2
if len(strA) = 0 then return
strB(1) = strA(1)
for each s in strA
if (strA(ind)strA(ind - 1) then
count = 0
strB(ind) = strA(ind)
else
strB(ind) = strA(ind - 1)
end if
ind = ind1
next s
vb语法忘vb.net查找数组了 。。。大概是这么个意思吧 。。。。排序N LOG N,后面是线性的N , 所以总共是NLOGN
vb.net如何在数组中查找数组?'''这个函数功能就是用来把数组转为stringvb.net查找数组的格式'''如byte()={1,2,3,4,5,6}转化后变为",1,2,3,4,5,6,"Function ByteArrayToString(bytes() As Byte) As StringDim s As String = ""For i As Integer = 0 To bytes.Lengths = Convert.ToString(bytes(i))","NextReturn “,"sEnd Function Sub Search()Dim a as byte()={1,2,3,4,5,6}
Dim b as byte()={2,3,4}
Dim astr As String = ByteArrayToString(a)Dim bstr As String = ByteArrayToString(b)Dim index As Integer = astr.IndexOf(bstr) '这个index就是b数组在a数组的位置vb.net查找数组,下标从0开始vb.net查找数组,不过记得处理下逗号vb.net查找数组,因为这时候是字符串 。'''如果index小于0说明没有匹配内容End Sub 现在说明下ByteArrayToString为什么要在字符串开头加个",",如果不加,可能出现a="1,23,4,5,6,", b="3,4,5," , 结果导致查询位置错误,匹配了a的位置
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