字符串移动程序所示字符串在一矩形框内一半从左另一半从右向中间移动，当两半相遇时又分别向两边移动，直至遇到两侧的边框双重新向中间移动，重复上述过程直至按任意键，则停止字符串动画显示返回到主菜单。-Move the string in a string program rectangle shown in the left half of the other half from the right to the middle of moving, when the two halves meet time and were moving from side to side until both sides of the border have dual new moves to the middle, repeat the above process until you press any key, then stop string animation display returns to the main menu.