c - C语言如何将图像复制到目录

Question

我正在尝试使用文件打开和写入文件方法复制图像文件，但无法实现图像...所以请帮我解决代码以及所需的头文件。

   char ch, source_file[20], target_file[20];
   FILE *source, *target;
   source = fopen("Source", "r");
   if( source == NULL )
   {
   printf("Press any key to exit...\n");
   }
   target = fopen("Destination", "w");
   if( target == NULL )
   {
   fclose(source);
   }

   while( ( ch = fgetc(source) ) != EOF )
   fputc(ch, target);

   printf("File copied successfully.\n");

   fclose(source);
   fclose(target);

我试过这个....

Answer 1

尝试:

FILE *source, *target;
int i;
source = fopen("Source", "rb"); 

if( source == NULL ) { printf("Press any key to exit...\n");} //exit(EXIT_FAILURE); 

fseek(source, 0, SEEK_END);
int length = ftell(source);

fseek(source, 0, SEEK_SET);
target = fopen("Destination", "wb"); 

if( target == NULL ) { fclose(source); } //exit(EXIT_FAILURE);

for(i = 0; i < length; i++){
    fputc(fgetc(source), target);
}

printf("File copied successfully.\n"); 
fclose(source); 
fclose(target);

瓦尔特