1 / 5

ファイルへの入出力

ファイルへの入出力. C の導入. #include &lt;stdio.h&gt; int main() printf(“Hello!<br>”); return 0; }. #include &lt;math.h&gt; #include &lt;stdio.h&gt; int main() { FILE *fp = fopen(&quot;data.csv&quot;,&quot;w&quot;); int i; float x[101],y[101],pi; pi = 3.141592; for (i = 0; i &lt;=100; i++) { x[i]=2.0*i/100.0*pi;

kailani-james
Download Presentation

ファイルへの入出力

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ファイルへの入出力

  2. Cの導入 #include <stdio.h> int main() printf(“Hello!\n”); return 0; }

  3. #include <math.h> #include <stdio.h> int main() { FILE *fp = fopen("data.csv","w"); int i; float x[101],y[101],pi; pi = 3.141592; for (i = 0; i <=100; i++) { x[i]=2.0*i/100.0*pi; y[i]=sin(x[i]); fprintf(fp,"%d,%f,%f\n",i,x[i],y[i]); } fclose(fp); return 0; } ファイル書込みの例

  4. FILE *fp = fopen("data.csv","w"); オープンモード

  5. fprintf(fp,"%d,%f,%f\n",i,x[i],y[i]); 変換指示子

More Related