Windows身份验证:
<connectionStrings>
<add name="GameCardSaleDB" connectionString="Data Source=2FE7E52BA2E4457/SQLEXPRESS;Initial Catalog=GameCardSale;Integrated Security=True"/>
</connectionStrings>
sql身份验证:
<connectionStrings>
<add name="GameCardSaleDB" connectionString="server=2FE7E52BA2E4457/SQLEXPRESS;database=GameCardSale;uid=sa;pwd=sa"/>
</connectionStrings>