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#include "stdio.h"
int main(void)
{
// ÉùÃ÷Ò»¸öcharÐÍÖ¸Õëpc£¬ÇÒÈÃËüÖ¸Ïò¿ÕÖµ
char* pc = 0;
char a = 'a';
// ÉùÃ÷Ò»¸öÒýÓÃrc£¬ÇÒÈÃËüÒýÓñäÁ¿a
char& rc = a;
printf("%d, %c\n", pc, rc);
char *pc2;
// ÉùÃ÷Ò»¸öÖ¸Õ룬µ«¿ÉÒÔ²»³õʼ»¯
pc2 = pc;
// char& rc2;
// ÉÏÃæÓï¾ä±àÒëʱ£¬»á²úÉúÈçÏ´íÎó£º
// error C2530: 'rc2' : references must be initialized
// ¼´£¬Ó¦ÓñØÐë³õʼ
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