怎么在C里面读二进制文件？

[SpritToT]

怎么在C里面读二进制文件？

[freewing]

用二进方式打开后读就是了。fread

[yang__ling]

file *file1;
file1=fopen("temp.dat",+rb); //加一个B
fread(*file,1,1,size()); //再调用FREAD();

[panpasspanpass]

a up

[panpasspanpass]

wo tongyi

[wiler]

fopen("Filename.dat","+rb");

[林雨亭]

注意：字节的顺序

[prototype]

it is:

FILE* file1; // not 'file'
file1=fopen("temp.dat","r+b"); // not '+rb'
// fread(*file,1,1,size()); is wrong
// see the following for correct usage.

Declaration:

size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
Reads data from the given stream into the array pointed to by ptr. It reads nmemb number of elements of size size. The total number of bytes read is (size*nmemb).
On success the number of elements read is returned. On error or end-of-file the total number of elements successfully read (which may be zero) is returned.

[divaly]

fopen打开文件，rb+二进制文件，
fread读文件
fseek定位文件

[zhaoweikid]

能不能给一个完整的程序？

[poly30]

c语言书上一般都有例子

找本书看就行了

[anyyan]

FILE *fp; //读二进制文件proc_dat
if((fp=fopen("proc_dat","rb"))==NULL)
{
printf("cannot open this file\n");
exit(0);
}
for(i=1;i<=SIZE;i++)
{
fgets(Value,3,fp);//Value存放读到的数据（3表示字符数，fp指针读完一个自动加1）
getc(fp); //我的文件中有空格
}
fclose(fp);


看不懂就去看书。一般要根据具体的文件形式及数据格式做相应改变的。