c语言编程采集和采集正弦波数据

#include   <math.h>   
  #include   <stdio.h>   
  #include   <conio.h>   
  #include   <fstream.h>   
  void   main()   
  {   
      double   a,b,c[256],h[256],l[256];   
      int   i;   
      a=2*3.1415926/256;       
      b=0;   
      for(i=0;i<256;i++)   
  {   
      c[i]=sin(b);       
      b=b+a;   
  }   
      for(i=0;i<256;i++)   
  {   
      if(i%16==0)   printf("\n");   
      printf("%8.3f",c[i]);       
  }   
  FILE   *fp1,*fp2,*fp3;   
  fp1=fopen("zk1.bin","wb");       
  if(fp1==NULL)   
  {   
          cout<<"文件创建失败!"<<endl;   
  return;   
  }   
  for(i=0;i<256;i++)   
  {   
  fwrite(&c[i],2,1,fp1);