<apex:pageBlockButtons location="Top" >
 <apex:commandButton value="Save" action="{!saverec}"/> <br/><br/>

 <apex:commandLink action="{!editOpp}" value="Edit"/>

Public Opportunity opp{get;set;}
Public String op1;
 public id accid{set;get;}

Opp= (Opportunity)stdController.getRecord();


}


public PageReference saverec() {

    insert opp;

    pagereference pr = new pagereference('https://c.ap6.visual.force.com/apex/Opp2');

    return pr;
}


public Pagereference editOpp()

PageReference ref = new PageReference('/'+selectedAccId+'/e?retURL=%2F'+selectedAccId);
    return ref;

}

<apex:commandLink action="{!deleteOpp}" value="Delete"/>

public List<Opportunity> Opp{get;set;}
Public List<Opportunity> Opportunitylst{get;set;}
public String selectedAccId {get;set;}

delete Opportunitylst;
      return null;

      }




public mycontroller1(){
    Opportunitylst=[select Name,AccountId,Amount,CloseDate,StageName from Opportunity order by createdDate DESC limit 10 ];
 }
public Pagereference editOpp()