{"id":144831,"date":"2024-11-01T09:50:20","date_gmt":"2024-11-01T01:50:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/144831\/"},"modified":"2024-11-01T09:50:21","modified_gmt":"2024-11-01T01:50:21","slug":"vb-%e6%8e%a7%e4%bb%b6%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e8%bc%95%e9%ac%86%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a-%e7%94%a8-vb-%e6%8e%a7%e4%bb%b6%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/144831\/","title":{"rendered":"VB \u63a7\u4ef6\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u8f15\u9b06\u4fee\u6539\u6578\u64da (\u7528 vb \u63a7\u4ef6\u4fee\u6539\u6578\u64da\u5eab)"},"content":{"rendered":"

VB \u63a7\u4ef6\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u8f15\u9b06\u4fee\u6539\u6578\u64da<\/h1>\n

\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002Visual Basic\uff08VB\uff09\u4f5c\u70ba\u4e00\u7a2e\u7c21\u55ae\u6613\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u63a7\u4ef6\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u8f15\u9b06\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 VB \u63a7\u4ef6\u4f86\u4fee\u6539\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

VB \u63a7\u4ef6\u6982\u8ff0<\/h2>\n

VB \u63d0\u4f9b\u4e86\u591a\u7a2e\u63a7\u4ef6\uff0c\u4f8b\u5982\u6587\u672c\u6846\u3001\u6309\u9215\u548c\u6578\u64da\u7db2\u683c\u7b49\uff0c\u9019\u4e9b\u63a7\u4ef6\u53ef\u4ee5\u7528\u4f86\u6536\u96c6\u7528\u6236\u8f38\u5165\u4e26\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u901a\u904e\u9019\u4e9b\u63a7\u4ef6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u7528\u6236\u754c\u9762\uff0c\u4e26\u5be6\u73fe\u6578\u64da\u7684\u589e\u522a\u6539\u67e5\uff08CRUD\uff09\u64cd\u4f5c\u3002<\/p>\n

\u9023\u63a5\u6578\u64da\u5eab<\/h2>\n

\u5728\u9032\u884c\u6578\u64da\u64cd\u4f5c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 ADO.NET \u9023\u63a5 SQL Server \u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n

Dim conn As New SqlConnection(\"Data Source=your_server;Initial Catalog=your_database;User ID=your_username;Password=your_password\")\nconn.Open()<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u8acb\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u66ff\u63db\u6578\u64da\u6e90\u3001\u6578\u64da\u5eab\u540d\u7a31\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n
\u4f7f\u7528 VB \u63a7\u4ef6\u4fee\u6539\u6578\u64da<\/h2>\n
\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528 VB \u63a7\u4ef6\u4f86\u4fee\u6539\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u6587\u672c\u6846\u548c\u6309\u9215\u4f86\u66f4\u65b0\u6578\u64da\u5eab\u4e2d\u7684\u8a18\u9304\u3002<\/p>\n
\u793a\u4f8b\uff1a\u66f4\u65b0\u7528\u6236\u4fe1\u606f<\/h3>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u4fe1\u606f\u8868\uff0c\u5305\u542b\u7528\u6236\u7684\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u66f4\u65b0\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n
Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click\n    Dim cmd As New SqlCommand(\"UPDATE Users SET Email = @Email WHERE Name = @Name\", conn)\n    cmd.Parameters.AddWithValue(\"@Email\", txtEmail.Text)\n    cmd.Parameters.AddWithValue(\"@Name\", txtName.Text)\n\n    Try\n        Dim rowsAffected As Integer = cmd.ExecuteNonQuery()\n        If rowsAffected > 0 Then\n            MessageBox.Show(\"\u66f4\u65b0\u6210\u529f\uff01\")\n        Else\n            MessageBox.Show(\"\u672a\u627e\u5230\u8a72\u7528\u6236\u3002\")\n        End If\n    Catch ex As Exception\n        MessageBox.Show(\"\u932f\u8aa4\uff1a\" & ex.Message)\n    End Try\nEnd Sub<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 SqlCommand \u4f86\u57f7\u884c SQL \u66f4\u65b0\u8a9e\u53e5\uff0c\u4e26\u901a\u904e\u53c3\u6578\u5316\u67e5\u8a62\u4f86\u9632\u6b62 SQL \u6ce8\u5165\u653b\u64ca\u3002\u7528\u6236\u5728\u6587\u672c\u6846\u4e2d\u8f38\u5165\u7684\u6578\u64da\u5c07\u88ab\u7528\u4f86\u66f4\u65b0\u6578\u64da\u5eab\u4e2d\u7684\u8a18\u9304\u3002<\/p>\n
\u6578\u64da\u9a57\u8b49<\/h2>\n
\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u4e4b\u524d\uff0c\u9032\u884c\u6578\u64da\u9a57\u8b49\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u958b\u767c\u8005\u61c9\u8a72\u78ba\u4fdd\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u662f\u6709\u6548\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u932f\u8aa4\u548c\u6578\u64da\u640d\u58de\u3002\u53ef\u4ee5\u4f7f\u7528 VB \u7684\u5167\u5efa\u51fd\u6578\u4f86\u6aa2\u67e5\u7528\u6236\u8f38\u5165\u7684\u683c\u5f0f\uff0c\u4f8b\u5982\uff1a<\/p>\n
If Not IsEmail(txtEmail.Text) Then\n    MessageBox.Show(\"\u8acb\u8f38\u5165\u6709\u6548\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u3002\")\n    Return\nEnd If<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u6aa2\u67e5\u7528\u6236\u8f38\u5165\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u662f\u5426\u6709\u6548\uff0c\u82e5\u7121\u6548\u5247\u986f\u793a\u63d0\u793a\u4fe1\u606f\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u4f7f\u7528 VB \u63a7\u4ef6\u4f86\u64cd\u4f5c\u6578\u64da\u5eab\u662f\u4e00\u500b\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904e\u6587\u672c\u6846\u3001\u6309\u9215\u7b49\u63a7\u4ef6\u8f15\u9b06\u5730\u5be6\u73fe\u6578\u64da\u7684\u4fee\u6539\u3002\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u5efa\u7acb\u7a69\u5b9a\u7684\u9023\u63a5\u3001\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u4ee5\u53ca\u9032\u884c\u6578\u64da\u9a57\u8b49\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u6b65\u9a5f\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 \u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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