文件操作总结
1.读取文件
FILE *file = fopen(file_path,"rb");
2.获取文件大小
fseeko(file,0,SEEK_END);
uint64_t file_size = ftello(file);
fseeko(file,0,SEEK_SET);
3.读取文件
size_t fread ( void *buffer, size_t size, size_t count, FILE *stream) ;
例如读取整个文件
char * buf=new char[file_size];
fread(buf,file_size,1,file);