void load(char str[100])
{
	int i = 0;
	FILE* pf = fopen("count.txt", "r");
	if (pf == NULL)
	{
		perror("error:");
		return 1;
	}
	printf("把字符转成大写后\n");
	while (fscanf(pf,"%s",str)!=EOF)
	{
		for (i = 0; str[i] != '\0'; i++)
		{
			if (str[i] >= 'a' && str[i] <= 'z')
			{
				str[i] -= 32;//小写和大写相差32
			}
		}
		printf("%s", str);//循环完输出内容
	}
	fclose(pf);
}
int main()
{
	char str[100];
	FILE* pf = fopen("count.txt", "w");
	if (pf == NULL)
	{
		perror("error:");
		return 1;
	}
	int flag = 1;//用来判断
	while (flag == 1)
	{
		printf("请输入字符串\n");
		gets(str);
		fprintf(pf, "%s", str);
		printf("输入J停止输入，输入其他字符继续接收字符\n");
		char c = getchar();
		getchar();//getchat的最后会有个\n,需要接收
		if (c == 'J')
		{
			flag = 0;//跳出循环
		}
		printf("\n");
	}
	fclose(pf);
	load(str);
	return 0;
}