2021-08-26写入乘法表到文件

#include <stdio.h>

int main(int argc, char const *argv[])
{
	FILE* file;
	file = fopen("a.txt","w+");

	for (int i = 1; i <= 9; i++)
	{
		for (int j = 1; j <= i; j++)
		{
			fprintf(file,"%d*%d=%d\t", j, i, i*j);
			printf("%d*%d=%d\t", j, i, i*j);
		}
		printf("\n");
	}
	return 0;
}