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PayInfo payinfo = service.GetInfo(payno);
payinfo.NO =“ddddddd”;
class1 obj=new class1(payinfo);
obj.test();
class class1
{
private PayInfo PayInfo;
public class1(PayInfo p)
{
this.PayInfo = p;
}
public void test()
{
database.PayInfoes.Attach(PayInfo);
PayInfo.Name=''dddddsdfsdf"
database.SaveChanges();
}