Question

编程,若程序输入12345,则输出54321,若程序输入-3456,则输出-6543

C语言的，谢谢，在线等。

Answer 1

这个可以用字符串来解决，呵呵
main()
{
char a[],b[];
int i,j;
printf("Input a number\n");
for(i=0;;i++)
{
a[i]=getchar();
if(a[i]==0d)
break;
}
i--;
if(a[0]=='-')
{
b[0]=a[0];
for(j=1;j<=i;j++)
b[j]=a[i-j+1];
}
elsa
for(j=0;j<=i;j++)
b[j]=a[i-j];
for(j=0;j<=i;j++)
printf("%c",b[i])
}

Answer 2

#include <stdio.h>
#include <stdlib.h>

void reverseOutput(int n)
{
if(n<0)
{
printf("-");
n=-n;
}
printf("%d",n%10);
if(n>10) reverseOutput(n/10);
}

int main()
{
int n;
printf("input n:");
scanf("%d",&n);
reverseOutput(n);
system("pause");
return 0;
}

Answer 3

#include <stdio.h>
void main()
{
char a[100], b[100];
int i;
int j = 0;
int k = 0;
gets(a);
if (a[0] == '-')
{
b[0] = '-';
j = 1;
k = 1;
}
for (i = 0; i != strlen(a); ++i)
{
b[j] = a[strlen(a) - 1 - i];
j++;
}
b[j - k] = '\0';
puts(b);
}

Answer 4

反向
Function xx(ByVal aa As String) As String
Dim longth As Integer
Dim i As Integer

longth = Len(aa)
For i = longth To 1 Step -1
xx = xx

Answer 5

取反