#include <iostream> #include <stdio.h>
using namespace std;
class IOException{}; class FileException{}; class UndefineError{};
void my_copy(const char* src_file, const char* dest_file) { FILE *in_file, *out_file; in_file = fopen(src_file, "rb"); if (in_file == NULL) { throw IOException(); }
out_file = fopen(dest_file, "wb"); if (out_file == NULL) { throw FileException(); }
char rec[1024]; size_t bytes_in, bytes_out; while ((bytes_in = fread(rec, 1, 1024, in_file))>0) { bytes_out = fwrite(rec, 1, bytes_in, out_file); if (bytes_in != bytes_out) { throw UndefineError(); } } fflush(out_file); fclose(out_file); fclose(in_file);
}
int main() { try { my_copy("D:\\File\\1.txt", "D:\\File\\20190608\\1.txt"); } catch (IOException e) { printf("异常一\n"); } catch (FileException e) { printf("异常二\n"); } catch (UndefineError e) { printf("异常三\n"); }
system("pause"); return 0; }
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