記得國中的時候用MP3看電子書,MP3支援的文本文檔格式不能超過1M,否則打不開,然後在網上下了一個檔案分割器,感覺真的很強大啊(别吐槽,當時真的很白)。
等自己學了C語言後,便想自己弄一個檔案分割器,可是在網上搜了一下源碼,看起來很複雜的樣子,也就沒了興趣。現在又重新拾起了這個願望,不過第一次弄的比較簡單,沒有重命名等功能,以後還會重新附加功能的。
有什麼不足的,歡迎拍磚。
閑話少叙,直接上源代碼。
/* copy the file1 into 2 file --------
* file2 && file3
* And then print file2 && file3
*/
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE *fp1 ,*fp2,*fp3;
int ch;
int row_count = 0; //count the rows
if ( (fp1 = fopen ("file1","r+")) == NULL) {
perror ("open file file1\n");
exit(1);
}
if ( ( fp2 = fopen ("file2", "w+")) == NULL) {
perror ("open file file2\n");
exit(1);
}
if ( ( fp3 = fopen ("file3", "w+")) == NULL) {
perror ("open file file3\n");
exit(1);
}
//count the row of the file
while ((ch = fgetc (fp1)) != EOF ){
if (ch == '\n') row_count++;
}
rewind(fp1);
//copy file1 into two files----file2 && file3
while ((ch = fgetc (fp1)) != EOF){
static int copy_row_count = 0;
if (ch == '\n') copy_row_count++;
if (copy_row_count <= row_count/2) {fputc (ch, fp2); continue;}
if (copy_row_count > row_count/2) {fputc (ch, fp3); continue;}
}
rewind(fp1);
rewind(fp2);
rewind(fp3);
printf("#########\nfile1:\n#########\n");
while ((ch = fgetc(fp1)) != EOF )
putchar(ch);
printf("#########\nfile2:\n#########\n");
while ((ch = fgetc(fp2)) != EOF )
putchar(ch);
printf("#########\nfile3:\n#########\n");
while ((ch = fgetc(fp3)) != EOF )
putchar(ch);
fclose(fp1);
fclose(fp2);
fclose(fp3);
return 0;
}
歡迎大家指正批評!!