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# include <stdio.h>
int main()
{
int i, j, k;
/* ±äÁ¿i´Ó0µ½4£¬±íʾËù»ÁâÐÎͼµÄµÚÒ»ÖÁµÚÎåÐÐ */
for(i = 0; i <= 4; i++)
{
/* µ±ÐÐÊýΪiʱ£¬¿Õ¸ñÊýÊÇiµÄº¯Êý£¬Îª4-i¸ö */
for(j = 0; j <= 3-i; j++)
printf(" ");
/* ÐǺÅÊýÒ²ÊÇiµÄº¯Êý£¬Îª2i+1¸ö */
for(k = 0; k <= 2*i; k++)
printf("*");
printf("\n");
}
/* ±äÁ¿i´Ó0µ½3£¬±íʾËù»ÁâÐÎͼµÄµÚÁùÖÁµÚ¾ÅÐÐ */
for(i = 0; i <= 3; i++)
{
/* µ±ÐÐÊýΪiʱ£¬¿Õ¸ñÊýÊÇiµÄº¯Êý£¬´ËʱΪi¸ö */
for(j = 0; j <= i; j++)
printf(" ");
/* ÐǺÅÊýÒ²ÊÇiµÄº¯Êý£¬´ËʱΪ7-2i¸ö */
for(k = 0; k <= 6-2*i; k++)
printf("*");
printf("\n");
}
return 0;
}
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# include <stdio.h>
int main()
{
/* ¶¨ÒåÒ»¸öÕûÐÎÖ¸Õëp */
int *p;
int begin, end;
begin = 10;
/* ¸øÖ¸Õëp¸³³õÖµ */
p = &begin;
& ......