求数组逆序的函数。从键盘输入int型数组a[ 20 ]的20 个元素值，函数实现对数组元素数据的逆序放置。即第1个元素与第20个元素互换，第2个元素与第19个元素互换，……，第10个元素与第11个元素互换。压缩包内共两种方法。-Find an array reverse function. Input from a keyboard int array [20] of the 20 elements of the value placed on the reverse function to a

实现用键盘演奏简单曲谱功能的小程序，按照标准音频率编程实现，有数个八度的音域-Scores to achieve a simple function of playing with the keyboard applet, in accordance with the standard pronunciation frequency programming, several-octave vocal range

该程序能够锁住键盘,让键盘失去功能.VC-The program can lock the keyboard, so that loss of function of the keyboard

该程序能够锁住键盘,让键盘失去功能.VC-The program can lock the keyboard, so that loss of function of the keyboard