2021-06-14 C char* insert按顺序插入字符(char* str, char c)

char* insert按顺序插入字符(char* str, char c)
{//缘由https://ask.youkuaiyun.com/questions/7449243?spm=1005.2025.3001.5141
	char t;
	while (*str != '\0')//while (*str != '\n')
	if (*str < c)
		++str;
	else
		t = *str, *str = c, c = t, ++str;
	*str = c;
	return str;
}



	char a[54]{}, c;//"abdef"
	int x = 0;
	while (1)
	{
		scanf_s("%c", &a[x]);
		if (a[x] == '\n')
			break;
		else
			++x;
	}
	a[x] = '\0';//使用'\n'退出时不用这句
	scanf_s("%c", &c);
	insert按顺序插入字符(a, c); x = 0;
	while (a[x] != '\0')printf_s("%c", a[x++]);
	printf_s("\n");

char* insert按顺序插入字符(char* str, char c)
{//缘由https://ask.youkuaiyun.com/questions/7449243?spm=1005.2025.3001.5141
	char t;
	while (*str != '\0')
	if (*str < c)
		++str;
	else
		t = *str, *str = c, c = t, ++str;
	*str = c; ++*str='\0';
	return str;
	//char a[54]{0}, c;//"abdef"
	//int x = 0;
	//scanf_s("%s", a, 54);
	//getchar();
	//scanf_s("%c", &c);
	//insert按顺序插入字符(a, c);
	//while (a[x] != '\0')printf_s("%c", a[x++]);
	//printf_s("\n");
}