vb.net身份證讀取 vb編寫身份證程序

vb.net二進(jìn)制怎么讀取文件?

一、二進(jìn)制文件讀寫

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1、寫二進(jìn)制數(shù)據(jù)到指定目錄

==將barray字節(jié)數(shù)組中的數(shù)據(jù)創(chuàng)建在strFilename目錄文件下,存儲格式為二進(jìn)制,F(xiàn)alse表示不添加,直接覆蓋創(chuàng)建。

2、從指定路徑下讀取二進(jìn)制數(shù)據(jù)到數(shù)組

==將目錄中的文件讀取到barry字節(jié)數(shù)組中,即讀取二進(jìn)制文件。

二、字符文件的讀寫

1、 將txtFile控件中的字符寫到srtFileName指定目錄,以創(chuàng)建方式。

2、從srtFileName目錄中的文件讀取到txtFile控件

GridView1.DataKeyNames = new string[] { "身份證號碼" };用VB.net怎么寫

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vb程序中,輸入身份證號碼判斷身份證號正確的程序

Dim Wi(1 To 18) As Integer '檢驗(yàn)碼

Private Function SetWi()

Wi(1) = 7

Wi(2) = 9

Wi(3) = 10

Wi(4) = 5

Wi(5) = 8

Wi(6) = 4

Wi(7) = 2

Wi(8) = 1

Wi(9) = 6

Wi(10) = 3

Wi(11) = 7

Wi(12) = 9

Wi(13) = 10

Wi(14) = 5

Wi(15) = 8

Wi(16) = 4

Wi(17) = 2

Wi(18) = 1

End Function

Public Function CheckCIDC15(ByVal StrID15 As String) As String

If Not IsNumeric(StrID15) Then

CheckCIDC15 = "身份證號碼輸入有誤!有非數(shù)字出現(xiàn)!"

Exit Function

End If

If StrID15 = "111111111111111" Then

CheckCIDC15 = "身份證號碼輸入錯(cuò)誤"

Exit Function

End If

If Val(Mid(StrID15, 9, 2)) 1 Or Val(Mid(StrID15, 9, 2)) 12 Then

CheckCIDC15 = "身份證號碼輸入有誤!月份不正確!"

Exit Function

End If

If Val(Mid(StrID15, 11, 2)) 1 Or Val(Mid(StrID15, 11, 2)) 31 Then

CheckCIDC15 = "身份證號碼輸入有誤!日期不正確!"

Exit Function

Else

If (Val(Mid(StrID15, 9, 2)) = 4 Or Val(Mid(StrID15, 9, 2)) = 6 Or Val(Mid(StrID15, 9, 2)) = 9 Or Val(Mid(StrID15, 9, 2)) = 11) And Val(Mid(StrID15, 11, 2)) = 31 Then

CheckCIDC15 = "身份證號碼輸入有誤!月份和日期不匹配"

Exit Function

ElseIf Val(Mid(StrID15, 9, 2)) = 2 And (Val(Mid(StrID15, 11, 2)) = 30 Or Val(Mid(StrID15, 11, 2)) = 31) Then

CheckCIDC15 = "身份證號碼輸入有誤!2月份沒有" Val(Mid(StrID15, 11, 2)) "天"

Exit Function

End If

End If

End Function

Public Function CheckCIDC18(ByVal StrID18 As String) As String

Dim StrID17 As String, AiWi As Integer, num As Integer, A18 As String

SetWi

If Not IsNumeric(Left(StrID18, 17)) Then

CheckCIDC18 = "身份證號碼輸入有誤!"

Exit Function

End If

If Val(Mid(StrID18, 11, 2)) 1 Or Val(Mid(StrID18, 11, 2)) 12 Then

CheckCIDC18 = "身份證號碼輸入有誤!月份不正確!"

Exit Function

End If

If Val(Mid(StrID18, 13, 2)) 1 Or Val(Mid(StrID18, 13, 2)) 31 Then

CheckCIDC18 = "身份證號碼輸入有誤!" vbCrLf "日期不正確!"

Exit Function

Else

If (Val(Mid(StrID18, 11, 2)) = 4 Or Val(Mid(StrID18, 11, 2)) = 6 Or Val(Mid(StrID18, 11, 2)) = 9 Or Val(Mid(StrID18, 11, 2)) = 11) And Val(Mid(StrID18, 13, 2)) = 31 Then

CheckCIDC18 = "身份證號碼輸入有誤!月份和日期不匹配"

Exit Function

ElseIf Val(Mid(StrID18, 11, 2)) = 2 And (Val(Mid(StrID18, 13, 2)) = 30 Or Val(Mid(StrID18, 13, 2)) = 31) Then

CheckCIDC18 = "身份證號碼輸入有誤!2月份沒有" Val(Mid(StrID18, 13, 2)) "天"

Exit Function

End If

End If

StrID17 = Left(StrID18, 17)

AiWi = 0

For num = 1 To 17

AiWi = AiWi + Val(Mid(StrID17, num, 1)) * Wi(num)

Next num

Select Case AiWi Mod 11

Case 0

A18 = "1"

Case 1

A18 = "0"

Case 2

A18 = "X"

Case 3

A18 = "9"

Case 4

A18 = "8"

Case 5

A18 = "7"

Case 6

A18 = "6"

Case 7

A18 = "5"

Case 8

A18 = "4"

Case 9

A18 = "3"

Case 10

A18 = "2"

End Select

If A18 Right(StrID18, 1) Then

CheckCIDC18 = "身份證號碼輸入有誤!" '尾數(shù)檢驗(yàn)馬不正確"

Exit Function

End If

End Function

Public Function CIDC15To18(ByVal StrID15 As String) As String

SetWi

Dim StrID17 As String, StrID18 As String, num As Integer, AiWi As Integer

If Not IsNumeric(StrID15) Then

CIDC15To18 = "15位身份證號碼輸入有誤!" vbCrLf "有非數(shù)字出現(xiàn)!"

Exit Function

End If

If Val(Mid(StrID15, 9, 2)) 1 Or Val(Mid(StrID15, 9, 2)) 12 Then

CIDC15To18 = "身份證號碼輸入有誤!" vbCrLf "月份不正確!"

Exit Function

End If

If Val(Mid(StrID15, 11, 2)) 1 Or Val(Mid(StrID15, 11, 2)) 31 Then

CIDC15To18 = "身份證號碼輸入有誤!" vbCrLf "日期不正確!"

Exit Function

Else

If (Val(Mid(StrID15, 9, 2)) = 4 Or Val(Mid(StrID15, 9, 2)) = 6 Or Val(Mid(StrID15, 9, 2)) = 9 Or Val(Mid(StrID15, 9, 2)) = 11) And Val(Mid(StrID15, 11, 2)) = 31 Then

CIDC15To18 = "身份證號碼輸入有誤!" vbCrLf "月份和日期不匹配"

Exit Function

ElseIf Val(Mid(StrID15, 9, 2)) = 2 And (Val(Mid(StrID15, 11, 2)) = 30 Or Val(Mid(StrID15, 11, 2)) = 31) Then

CIDC15To18 = "身份證號碼輸入有誤!" vbCrLf "2月份沒有" Val(Mid(StrID15, 11, 2)) "天"

Exit Function

End If

End If

StrID17 = Left(StrID15, 6) "19" Right(StrID15, 9)

AiWi = 0

For num = 1 To 17

AiWi = AiWi + Val(Mid(StrID17, num, 1)) * Wi(num)

Next num

Select Case AiWi Mod 11

Case 0

StrID18 = StrID17 "1"

Case 1

StrID18 = StrID17 "0"

Case 2

StrID18 = StrID17 "X"

Case 3

StrID18 = StrID17 "9"

Case 4

StrID18 = StrID17 "8"

Case 5

StrID18 = StrID17 "7"

Case 6

StrID18 = StrID17 "6"

Case 7

StrID18 = StrID17 "5"

Case 8

StrID18 = StrID17 "4"

Case 9

StrID18 = StrID17 "3"

Case 10

StrID18 = StrID17 "2"

End Select

CIDC15To18 = StrID18

End Function

'身份證檢驗(yàn)函數(shù),如果有錯(cuò)誤,則彈出正確信息,若正確,則繼續(xù)執(zhí)行

Function CIDCheck(strId As String) As String

If Len(strId) = 15 Then

CIDCheck = CheckCIDC15(strId)

ElseIf Len(strId) = 18 Then

CIDCheck = CheckCIDC18(strId)

Else

CIDCheck = "身份證位數(shù)不對"

End If

End Function

VB.net 讀取文本文件?

1、實(shí)現(xiàn)上傳按鈕方法代碼。

2、判斷圖片對象是否為空代碼。

3、取得數(shù)據(jù)庫字段 dt.Rows(0)("Pic")方法代碼。

4、字節(jié)數(shù)組轉(zhuǎn)換為Image類型方法代碼。

5、處理SQL中操作Image類型方法代碼。

6、實(shí)現(xiàn)的上傳結(jié)果。

網(wǎng)頁標(biāo)題:vb.net身份證讀取 vb編寫身份證程序
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