#define M 20
/*
一维数组的倒置
数组a刚被调用时，调用的是数组的第一个数据，*a是可以直接代替数组a的，调用*a和调用数组a没多大的区别
*/
void fun(int *x,int n)
{
int *p,m=n/2,*i,*j;
i=x;
j=x+n-1;
p=x+m;
for(;i
int t=*i;
*i=*j;
*j=t;
}
}
void main()
{
int i,a[M],n;
printf("Enter n:\n");
scanf("%d",&n);
printf("The original array:\n");
for(i=0;i
fun(a,i); //数组名a代表该数组首地址, 与&a[0]作用相同，*a即a[0]
printf("\nThe array inverted:\n");
for(i=0;i
}
/* 一维数一维数组应用组应用 */
#include "stdio.h"
#include "stdlib.h"
void main()
{
int Employee[10]={27000,32000,32500,27500,30000,29000,31000,32500,30000,26000};
int Index;
int NewSalary;
int Selection;
while(1)
{
printf("===================================================\n");
printf("=Simple Employee Salary Management System =\n");
printf("=1.Display employee salary =\n");
printf("=2.Modify employee salary =\n");
printf("=3.Quit =\n");
printf("Please input your choose:");
scanf("%d",&Selection);
if(Selection==1||Selection==2)
{
printf("**Please input the employee number:");
scanf("%d",&Index);
if(Index<10)
{
printf("**Employee Number is %d.",Index);
printf("The Salary is %d\n",Employee[Index]);
}
else
{
printf("##The error employee number!\n");
exit(1); // 需要stdlib.h头文件，表示异常退出.这个1是返回给操作系统的
}
}
switch(Selection)
{
case 1:
break;
case 2:
printf("**Please input new salary:");
scanf("%d",&NewSalary);
Employee[Index]=NewSalary;
break;
case 3:
exit(1);
break;
}
printf("\n");
}
}