vb.net年月数组分析的简单介绍
vb.net数组
Dim str As String = "", temp, n As Integer
创新互联公司 - 雅安电信机房,四川服务器租用,成都服务器租用,四川网通托管,绵阳服务器托管,德阳服务器托管,遂宁服务器托管,绵阳服务器托管,四川云主机,成都云主机,西南云主机,雅安电信机房,西南服务器托管,四川/成都大带宽,大带宽服务器,四川老牌IDC服务商
Dim str1 As String = "12,45,2,9,41,31,66,83,2,1,-9,-91,-21"
Dim a() As String = Split(str1, ",")
For i = 1 To UBound(a) Step 1
a(i) = Val(a(i))
Next
temp = 0
n = 0
For i = 1 To UBound(a)
If a(i) temp Then
temp = a(i)
End If
If a(i) 0 Then
n = n + 1
End If
Next
str = str "正数的个数为 " n
str = str "最大元素的下标为 "
For i = 1 To UBound(a)
If a(i) = temp Then
str = str i " "
End If
Next
TextBox6.Text = str
VB.NET 判断一个数组里面的值是否全部相同, 然后再执行下一步
在.NET 中微软已经为我们内置了一些方法,我们可以直接使用该方法以快速达到我们的目的
Module Module1
Sub Main()
Dim a(3) As Int32
a(0) = 1
a(1) = 1
a(2) = 1
a(3) = 1
'推荐第一种方法
If a.Distinct().Count() = 1 Then
If a.All(Function(c) c = 1) Then
End If
End If
End Sub
End Module
第二种方法为LINQ,这是一种高级用法;是.NET 程序员必知必会的东西,如果不懂怎么用可以按F1查看官方文档
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string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 String Dim s As String = "" For i As Integer = 0 To bytes.Length s = Convert.ToString(bytes(i)) "," Next Return “," 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,下标从0开始,不过记得处理下逗号,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
VB.NET 判断数组值是否全部相同
dim a(3)
a(0) = 1,a(1)=1,a(2)=1,a(3)=0
for i = 0 to 3
if a(i)a(0) then msgbox "有不同"
next
vb.net 数组定义和赋值
Dim S As String()
Dim j As Integer = 9
ReDim S(j)
For i = 0 To j
S(i) = i
Next
注: 指定数组上限才能对其赋值
vb.net 对象数组
你只是定义了一个对象,类而已
首先要给对象设置变量,这个还不是数组
Public class As Single的class 应该是关键字请换一个名字
Dim KidsX(1 to 100) as kids
KidsX(1).classx=1
KidsX(1).grade=1
KidsX(1).name=”张某"
KidsX(2).classx=1
KidsX(2).grade=2
KidsX(2).name=”王某"
……
新闻标题:vb.net年月数组分析的简单介绍
文章路径:http://myzitong.com/article/hsipoi.html