web.config 加密和解密
.net 2.0下加密和解密web.config文件中的某个section
aspnet_regiis –pef appSettings C:\Inetpub\wwwroot\website
aspnet_regiis –pdf appSettings C:\Inetpub\wwwroot\website
aspnet_regiis –pef appSettings C:\Inetpub\wwwroot\website
aspnet_regiis –pdf appSettings C:\Inetpub\wwwroot\website