一个简单的应用程序，用来说明循环结构与分支结构的嵌套使用 * 程序功能：猜数游戏。定义被猜的数。通过键盘输入进行猜数， * 如猜错则显示“**Wrong**”， “Too high”或“Too low ”； * 猜对则显示“**Right**”后退出-a simple application, used to illustrate the cycle structure and branch structure nested procedures * functions : guess a few games. By definition guess a few. Keyboard input through several guess, * wrong showed "** ** Wrong", "Too high" or "Too low"; * Guess showed "Right ** **" after withdrawal