程序代码：

#include <stdio.h>
main()
{
&nbsp;&nbsp;&nbsp;&nbsp;int n;
&nbsp;&nbsp;&nbsp;&nbsp;char monthName[][20] = {Illegal month, January, February, March, April, May, June, July, August, September, October, November, December};
&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;printf("Input month number:");
&nbsp;&nbsp;&nbsp;&nbsp;scanf("%d", n);
&nbsp;&nbsp;&nbsp;&nbsp;if ((n < 12) || (n > 1))
&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf("month %d is %c\n", n, monthName[n][n]);
&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;else
&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf("%s\n", monthName[0][0]);
&nbsp;&nbsp;&nbsp;&nbsp;}
}

程序代码：

#include <stdio.h>
main()
{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
&nbsp;&nbsp;&nbsp;&nbsp;int n;
&nbsp;&nbsp;&nbsp;&nbsp;char monthName[][20] = {"Illegal month", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;printf("Input month number:");
&nbsp;&nbsp;&nbsp;&nbsp;scanf("%d", &n);
&nbsp;&nbsp;&nbsp;&nbsp;if ((n <= 12) && (n >= 1))
&nbsp;&nbsp;&nbsp;&nbsp;{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf("month %d is %s\n", n, monthName[n]);
&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;else
&nbsp;&nbsp;&nbsp;&nbsp;{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf("%s\n", monthName[0]);
&nbsp;&nbsp;&nbsp;&nbsp;}
}

程序代码：

#include<stdio.h>
int main()
{
   static int a[3][4]={{1,3,5,7},{2,4,6,8},{15,17,34,12}};
   int b=0,i=0,j=0;
   b=a[0][0];
   for(i=0;i<3;i++)
   {
       for(j=0;i<4;j++)
       {
           if(b<a[i][j])
           b=a[i][j];
       }
   }
   printf("max value is %d\n",b);
   return 0;
}

for(i=0;i<3;i++)
   {
       for(j=0;i<4;j++)  //应为j
       {