#include < stdio.h > int main(void) { FILE * fp ; int x,y ; fp = fopen (" test.txt","r &quot

Oct 15, 2014

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파일에 쓰기. 파일에 서 읽 기. #include < stdio.h > int main(void) { FILE * fp ; int x=44,y=55; fp = fopen (" test.txt","w "); if( fp == (FILE *)NULL) { fprintf ( stderr ,"file open fail !!!<br>"); exit(1); } fprintf ( fp ,"%d %d", x,y ); fclose ( fp ); }.

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#include < stdio.h > int main(void) { FILE * fp ; int x,y ; fp = fopen (" test.txt","r &quot

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파일에 쓰기 파일에서읽기 #include <stdio.h> int main(void) { FILE *fp; int x=44,y=55; fp = fopen("test.txt","w"); if(fp == (FILE *)NULL) { fprintf(stderr,"file open fail !!!\n"); exit(1); } fprintf(fp,"%d %d",x,y); fclose(fp); } #include <stdio.h> int main(void) { FILE *fp; intx,y; fp = fopen("test.txt","r"); if(fp == (FILE *)NULL) { fprintf(stderr,"file open fail !!!\n"); exit(1); } fscanf(fp,"%d %d",&x,&y); printf("x = %d y = %d \n",x,y); fclose(fp); }