这里需要注意的是，由于是按照二进制读取的字节流，所以 里的东西直接打印出来可能和想象中的长度不一...
需要创建一个二进制文件(binary),并对构造的文件内容进行读写,将结构体成员信息数据都写入到二进制文件中并能识别它。 步骤:1. 利用fopen()函数来打开一个并创建一个二进制文件。 FILE *fp; /*FILE 是变量类型,是C中用于文件的标准数结构;声明fp是指向FILE类型的指针*/ fp = fopen ("wf.dat", "wb");...
inF.open("data.bin", std::ifstream::binary);//以二进制格式打开文件inF.seekg(0, ios::end);//将输入指针指向文件末尾length = inF.tellg();//获取当前指针位置cout <<"the length of the file is"<< length <<""<<"byte"<<endl; unsignedchar* data =newunsignedchar[length]();//读取文件数...
/*打开*/ FILE *fp1 = fopen("../test2.bin","wb"); if(NULL == fp1) { printf("open file fail\r\n"); goto end; } /*写入*/ size_t cnt1 = fwrite(&book1, 1, sizeof(BOOK), fp1); if(sizeof(BOOK) != cnt1) { printf("write file fail\r\n"); fclose(fp1); goto...
(Student), count, file); fclose(file); } void readBinaryFile(const char* filename) { FILE* file = fopen(filename, "rb"); if (!file) { perror("Failed to open file for reading"); return; } Student student; while (fread(&student, sizeof(Student), 1, file) == 1) { printf("...
C语言中 fp = fopen(filename, “rb”)，里的rb是指：打开一个二进制文件，文件必须存在，只允许读。fphzk=fopen("c:\\hzk16","rb")是打开C驱动器磁盘的根目录下的文件hzk16，按二进制方式进行读操作。两个反斜线“\\ ”中的第一个表示转义字符，第二个表示根目录。
voidReadImageFile(constchar*Imgname) { ifstream imgF(Imgname,ios::binary); if(!imgF){ cerr<<"open error!"<<endl; abort(); } imgF.seekg(0,ios::end); intsize=imgF.tellg(); //查了C++Library Reference才知道怎么得到size。 /*int pixscnt; ...
/// C 保存bin文件voidwriteBin(char*path,char*buf,intsize){FILE*outfile;if((outfile=fopen(path,"wb"))==NULL){printf("\nCan not open the path: %s\n",path);exit(-1);}fwrite(buf,sizeof(char),size,outfile);fclose(outfile);} ...
cover album cover baby cover down left cover glass forceps cover is open cover lood cover media cover of set of depen cover of spout cover of winter cover sec attempt cover space small cover the country wit cover the shower nozz cover the sun with cl cover their spiritual cover v cover ...
// read image from binary format file FILE*fpr=fopen("E:\\patch.bin","rb"); if(fpr==NULL) { cout<<"Open error!"<<endl; fclose(fpr); return; } intlabelr(0); fread(&labelr,sizeof(char),1,fpr); cout<<"label: "<<labelr<<endl; ...