摘要： c#数据库连接字符串集合(一)常用连接:1.使用SqlConnection对象: a. Sql 验证public void SqlConnectionOpen(){SqlConnection conn= new SqlConnection();conn.ConnectionString = "user id=sa;password=;initial catalog=northwind;datasource=localhost;connect Timeout=20";conn.Open();} b. Windows 身份验证 public void SqlConnectionOpen(){Sql 阅读全文