C#做的卡拉OK点歌系统(源码)

<?xml version='1.0' encoding='utf-8'?> <SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="KTV.Properties" GeneratedClassName="Settings"> <Profiles /> <Settings> <Setting Name="db_KTVConnectionString" Type="(Connection string)" Scope="Application"> <DesignTimeValue Profile="(Default)">&lt;?xml version="1.0" encoding="utf-16"?&gt; &lt;SerializableConnectionString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt; &lt;ConnectionString&gt;Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\Database\db_KTV.mdb;Persist Security Info=True&lt;/ConnectionString&gt; &lt;ProviderName&gt;System.Data.OleDb&lt;/ProviderName&gt; &lt;/SerializableConnectionString&gt;</DesignTimeValue> <Value Profile="(Default)">Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\Database\db_KTV.mdb;Persist Security Info=True</Value> </Setting> </Settings> </SettingsFile>