哪一個更好從以下選項C#使用關鍵字,正確使用它
是一個使用語句就夠了嗎?
選項1:
using(SqlConnection con = new SqlConnection(constring))
{
using(SqlCommand cmd = new SqlCommand())
{
.........................
.........................
.........................
}
}
選項2:
using(SqlConnection con = new SqlConnection(constring))
{
SqlCommand cmd = new SqlCommand();
.........................
.........................
.........................
}
可能重複的[是SqlCommand.Dispose()如果關聯的SqlConnection將佈置需要?](http://stackoverflow.com/questions/1808036/is-sqlcommand-dispose-required-if-associated- sqlconnection-will-be-dispos) – 2012-03-02 18:11:16