Splitting and merging of files

Source: Internet
Author: User

/* Partition of File/* #include <stdio.h> #include <stdlib.h> #include <string.h> #define &NBSP;NUM&NBSP;1024  * 1024 * 100int main () {        // Required split file path File *fr = fopen ("F:\\pl.exe",  "RB");if  (Fr == null) {exit (-1);} char *buff =  (char*) malloc (sizeof (char)  * num);if  (buff == null) {exit ( -2);} size_t rs = 0; File *fw;// = fopen ("F:\\1.exe",  "WB");//The partitioned file is cycled to the target path char str[100] =  "F : \ \ ";     char tmp_file[100];char name[100];int i = 1;while ((rs   = fread (Buff,sizeof (char), NUM,&NBSP;FR)) ( > 0) {// sprintfitoa (i,name,10);//     i->1-->name--> "1" strcpy (TMP_FILE,&NBSP;STR);// tmp_file ->> "F : \ \ "Strcat (tmp_file,name);//       f:\\1strcat (tmp_file, ". exe "); fw&Nbsp;= fopen (tmp_file,  "WB"); Fwrite (buff,sizeof (char) &NBSP;,RS,&NBSP;FW); fclose (fw); i++;} Fclose (FR); return 0;} /* File Merge */#include <stdio.h> #include <stdlib.h> #include <string.h> #define  num 1024* 1024*100// 10mbint main () {File *fr1 = fopen ("F:\\1.exe",  "RB");  // The segmented file path File *fr2 = fopen ("F:\\2.exe",  "RB"); File *fw = fopen ("F:\\meger.exe",  "WB");//target path after file merge char *buff =  (char*) malloc (sizeof (char)  * num);//size_t rs = 0; file *arr[] = {fr1,fr2};for  (int i=0;i<2;i++) {while (Rs = fread (Buff, sizeof (char), Num, arr[i])) ( > 0) {fwrite (buff, sizeof (char), &NBSP;RS,&NBSP;FW);} Fclose (Arr[i]);} Fclose (FW); free (buff); return 0;}

Splitting and merging of files

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