#include char *delete(char *p, int i);char a;int main(){char a[40], *b;int i;printf("请è¾å
¥å符串\n");scanf("%s", a);printf("请è¾å
¥ä½ è¦å é¤ç¬¬å 个å符\n");scanf("%d", &i);b = delete( a, i);if(b == NULL){printf(" å é¤å¤±è´¥\n");}else{printf("å é¤çåç¬¦æ¯ %c \n", *b);}printf("%s\n", a);//è¾åºå é¤åçå符串return 0;}char *delete(char *p, int i){int lengh = 0, j = 0;char * b = p;while(*p != '\0')//æ±åºå符串çé¿åº¦ï¼lenghä¸åæ¾å符串çé¿åº¦ç¨äºæ¯è¾{p++;lengh++;}p = b;//å 为p移å¨å°æåçä½ç½®ï¼å°å
¶éæ°å®ä½å°å¼å§ä½ç½®if(i > lengh || i < 1)//å¤æiæ¯å¦å¤§äºé¶å¹¶å°äºå符串çé¿åº¦ï¼å¦æä¸åçå°±è¿å{return NULL;}a = *( p + i -1);//ç¨å
¨å±åéä¿åè¦å é¤çå符for(j = i - 1; j < lengh; ++j)//è°æ´å符串ï¼è®©åé¢çåæ¯ä¾æ¬¡æ¿æ¢åé¢çï¼å
æ¬'\0';{*(p + j) = *(p + j + 1);}return &a;// è¿åaçå°å}
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