case'(':                /*当是（的时候，将此括号存入栈tp*/
                    op.top++;op.data[op.top]=ch;
                    break;
             case')':               
                    while(op.data[op.top]!='(')     
                    {
                           exp[t]=op.data[op.top];
                           op.top--;
                           t++;
                    }
                    op.top--;
希望各位告知，谢谢