#include <stdio.h> int main(){ FILE *fp; char *fname = "sample.csv"; int ret; double data[3]; fp = fopen( fname, "r" ); if( fp == NULL ){ printf( "%sファイルが開けません\n", fname ); return -1; } while( (ret=fscanf(fp, "%lf,%lf,%lf", &data[0], &data[1], &data[2])) != EOF){ printf("%lf %lf %lf\n", data[0], data[1], data[2]); } printf("\n"); fclose( fp ); }