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# include <stdio.h>
/* ºê¶¨Òå */
# define MAX 100
# define LEN 80
/* Ò»¸ö·Ç³£¼òµ¥µÄÎı¾±à¼Æ÷ */
int main()
{
char text[MAX][LEN]; // ¶¨Òå×Ö·ûÐÍÊý×é
register int t, i, j; /* ¶¨ÒåÈý¸ö¼Ä´æÆ÷±äÁ¿ */
/* ÖðÐÐÊäÈë×Ö·û´® */
for(t=0; t<MAX; t++)
{
printf("%d: ", t);
gets(text[t]);
if(!text[t][0])
break; /* ¿ÕÐÐÍ˳ö */
}
/* °´ÐУ¬Öð¸ö×Ö·ûÊä³ö×Ö·û´® */
for(i=0; i<t; i++)
{
for(j=0; text[i][j]; j++)
putchar(text[i][j]);
putchar('\n');
}
return 0;
}
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# include <stdio.h>
int main()
{
/* ¶¨Òå±äÁ¿²¢¸³³õÖµ */
int a = 5;
char c = 'a'; // 'a'µÄASCÂëµÄֵΪ97
  ......
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# include <stdio.h>
int main( )
{
int radius;
double area;
for(radius = 1; radius <= 10 ; radius++)
{
area = 3.1416 * radius * radius;
......
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# include <stdio.h>
int main()
{
int array[16][16];
int i, j, k, m, n;
/* ±äÁ¿³õʼ»¯ */
m = 1;
while(m == 1)
{
  ......