跳转语句continue和break

   document.write('break演示<br>')
        var a=1;
        do{    
            if(a==5){
                a++;
                break;
                
        }
            document.write('循环'+a+'次<br>');
            a++;
        }while(a<=10);
        document.write('continue演示<br>');
        var x=1;
        do{
            if(x==5){
                x++;
                continue;
                
            }
            document.write('循环'+x+'次<br>');
            x++;
            
        }
        while(x<=10);