vb.net中如何一次性读取一个目录中的多个文本文件的内容写入数据库？ 谁能给一个VB.Net按行读取大文本文件（100M以上），然...
\u5728VB.NET\u4e2d\u4e24\u4e2a\u6587\u672c\u6587\u4ef6\uff0c\u4e00\u4e2a\u6587\u4ef6\u4e2d\u6709\u591a\u884c\u6587\u672c\u3002\u73b0\u8981\u628a\u6587\u672c\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\u5199\u5165\u53e6\u4e00\u6587\u672c\u6587\u4ef6\u4e2dDim str_File_1 As String = My.Computer.FileSystem.ReadAllText("c:\\u7b2c\u4e00\u4e2a\u6587\u4ef6", System.Text.Encoding.ASCII) '\u6839\u636e\u5b9e\u9645\u7684\u7f16\u7801\u8bfb\u7b2c\u4e00\u4e2a\u6587\u4ef6 Dim str_File_2 As String = My.Computer.FileSystem.ReadAllText("c:\\u7b2c\u4e8c\u4e2a\u6587\u4ef6", System.Text.Encoding.ASCII) '\u6839\u636e\u5b9e\u9645\u7684\u7f16\u7801\u8bfb\u7b2c\u4e8c\u4e2a\u6587\u4ef6 '\u4e0b\u9762\u662f\u4e00\u6b21\u6027\u5199\u5165 My.Computer.FileSystem.WriteAllText("c:\\u7b2c\u4e00\u4e2a\u6587\u4ef6", str_File_2, True, System.Text.Encoding.ASCII) '\u4e0b\u9762\u662f\u4e00\u884c\u4e00\u884c\u5199\u5165 Dim str_Sp() As String = str_File_2.Split(vbCrLf) For i = 0 To str_Sp.LongLength - 1 My.Computer.FileSystem.WriteAllText("c:\\u7b2c\u4e00\u4e2a\u6587\u4ef6", str_Sp(i) & vbCrLf, True, System.Text.Encoding.ASCII) Next
\u5f88\u7b80\u5355\u561b\uff0c600\u591a\u5146\u7684\u6211\u90fd\u8bfb\u8fc7\uff0c\u6211\u7528\u7684\u662fc#
绛旓細缁欎綘涓涓猇B2010璇诲啓鏂囦欢鐨勪緥瀛愬惂 Dim name As String = "" Dim age As Integer name = InputBox("璇疯緭鍏ュ鍚") age = InputBox("璇疯緭鍏ュ勾榫") FileOpen(1, "d:\淇℃伅.txt", OpenMode.Append) WriteLine(1, name, age) FileClose(1) FileOpen(1, "d:\淇℃伅.txt", ...
绛旓細vb.net锛欴im path = System.IO.Directory.GetFiles("D:\Log\abc", "*.txt", SearchOption.AllDirectories)锛氭悳绱㈣璺緞涓嬬殑鎵鏈塼xt绫诲瀷鐨勭洰褰曞強瀛愮洰褰 path.AddRange(path)Dim _RecordInfo As String Dim _Reader As StreamReader _Reader = New StreamReader(file, System.Text.Encoding.Default)锛...
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绛旓細杞硸鏉ュ憡璇変綘鍚сVB.net涓璇诲啓鏂囦欢涓昏浣跨敤System.IO鍛藉悕绌洪棿銆傗憼 浣跨敤 File.ReadAllText 璇诲彇 Dim s As String = System.IO.File.ReadAllText("C:\a.txt")鈶 浣跨敤 StreamReader 璇诲彇锛屾敞鎰忕紪鐮佹牸寮忓拰鍐欏叆鐨勭紪鐮佷繚鎸佷竴鑷淬侱im sr As StreamReader = New StreamReader("C:\a.txt", System.Text....
绛旓細dim cmd as new sqlcommand Dim cmd As OleDbCommand = New OleDbCommand cmd.CommandText = "Select Name from Elements"dim da as new OleDbDataAdapter da.SelectCommand =cmd dim ds as new Dataset da.fill(ds)conn.close dim dt as datatable=ds.tables(0) '浠庢暟鎹簱閲岄潰璇诲嚭涓鍒楋紝鏀惧叆浜嗕竴...
绛旓細Not Key2 Is Nothing ThenKey1.DeleteSubKey("northsnow") '濡傛灉閿笉瀛樺湪灏卞垱寤哄畠End If3銆佸垱寤烘垨璇诲彇娉ㄥ唽琛ㄩ」Dim Key1 As Microsoft.Win32.RegistryKeyKey1 = My.Computer.Registry.CurrentUser '杩斿洖褰撳墠鐢ㄦ埛閿瓺im Key2 As Microsoft.Win32.RegistryKeyKey2 = Key1.OpenSubKey("...
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