试编制一个比赛得分程序。七个评委分别给分在10～20分之间的整数，七个评委中去掉一个最高分，去掉一个最低分，将剩下五个评分的平均值作为最后得分。程序要求：

（1）评委给分以2位十进制数从键盘输入；

（2）最后得分以十进制数形式在屏幕上显示；

（3）最后得分取小数1～2位；

（4）键盘输入和结果输出前应有提示符输出。-Test procedures for the preparation of a scoring game. Jury of seven points, respectively, to 10 to 20 minutes in between the integers, the seven judges to remove a maximum of points, removing a minimum points score will be the average of the remaining five scores as a last resort. Procedural requirements: (1) the judges give points to two decimal number input from the keyboard　(2) the final score in the form of a decimal number on the screen　(3) the final score from a small number of 1 ~ 2　(4) keyboard input and the results should prompt the output before the output.