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本文共计720个文字，预计阅读时间需要3分钟。
%E2%80%9CConnection%E7%B1%BB%E6%9C%89%E5%9B%9B%E7%A7%8D%EF%BC%8C%E5%8C%85%E6%8B%ACSqlConnection%EF%BC%8COleDbConnection%EF%BC%8COdbcConnection%E5%92%8COracleConnection%E3%80%82SqlConnection%E7%B1%BB%E7%9A%84%E5%AF%B9%E8%B1%A1%E8%BF%9E%E6%8E%A5%E6%98%AFSQL+Server%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%8COracleConnection%E7%B1%BB%E7%9A%84%E5%AF%B9%E8%B1%A1%E8%BF%9E%E6%8E%A5Oracle%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%8COleDbConnection%E8%BF%9E%E6%8E%A5%E5%8F%AF%E4%BB%A5%E8%BF%9E%E6%8E%A5%E5%8F%AF%E4%BB%A5%E4%BD%BF%E7%94%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93%E3%80%82%E2%80%9D
Connection类有四种:SqlConnection，OleDbConnection，OdbcConnection和OracleConnection。
本文共计720个文字，预计阅读时间需要3分钟。
%E2%80%9CConnection%E7%B1%BB%E6%9C%89%E5%9B%9B%E7%A7%8D%EF%BC%8C%E5%8C%85%E6%8B%ACSqlConnection%EF%BC%8COleDbConnection%EF%BC%8COdbcConnection%E5%92%8COracleConnection%E3%80%82SqlConnection%E7%B1%BB%E7%9A%84%E5%AF%B9%E8%B1%A1%E8%BF%9E%E6%8E%A5%E6%98%AFSQL+Server%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%8COracleConnection%E7%B1%BB%E7%9A%84%E5%AF%B9%E8%B1%A1%E8%BF%9E%E6%8E%A5Oracle%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%8COleDbConnection%E8%BF%9E%E6%8E%A5%E5%8F%AF%E4%BB%A5%E8%BF%9E%E6%8E%A5%E5%8F%AF%E4%BB%A5%E4%BD%BF%E7%94%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93%E3%80%82%E2%80%9D
Connection类有四种:SqlConnection，OleDbConnection，OdbcConnection和OracleConnection。