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#include <stdio.h> #include <stdlib.h> #include <string.h> int main() { FILE fp; printf("please input two numbers(seperated by key space):\n"); int i,j; intstr2; scanf("%d%d",&i,&j); printf("%d*%d=%d\n",i,j,ij);
printf("please input the file name:\n"); char str[10]; scanf("%s",str); if((fp=fopen("D:\text.txt","a+"))==NULL) { printf("\ncannot open the file!!!"); getchar(); exit(1); } fprintf(fp,"%d%d=%d",i,j,i*j); fclose(fp);

}