A、错误
B、正确
A.request.setAttribute(name,value)
B.response.setAttribute(name,value)
C.getSession().setAttribute(name,value)
D.servlet.getServletContext().setAttribute(name,value)
A.Value operator+(Value v,int i);
B.Value operator+(Value v=value,int i);
C.Value operator+(Value vint i=0);
D.Value operator+(Value v=value,int i=0);
A credit coupon______.
A.is used to buy a phone
B.has no value at all
C.has more value than the phone call
D.has the same value as the phone call