自作 Split関数
かなり大叩きしましたっ!
#include 
#include 
char* SplitStr(char *str, int *start);
int main(void)
{
	char *str = "1,teru,koneko,2019,06,01";
	char result[64 + 1];
	int start = 0;
	while(start < strlen(str))
	{
		strcpy(result, SplitStr(str, &start));
		printf("%s\n", result);
	}
	return 0;
}
char* SplitStr(char *str, int *start)
{
	char result[64 + 1];
	char *po = result;
	int i = *start;
	int j = 0;
	while(',' != str[i])
	{
		result[j] = str[i];
		if(i > strlen(str))
			break;
		i++;
		j++;
	}
	result[j] = '\0';
	*start = ++i;
	return po;
}
  
      
  
  
  
  