如何从二进制文件中读取浮点值(How Read Float value from Binary File)

   IT问题网   2020-06-26 00:00:00

问 题

嗨。



我想从二进制文件中读取浮动值。

文件* fpbinary = fopen(file.c_str(),"  rb"); 
float fvalue;

fread(( char *)amp; fvalue, sizeof char ), sizeof (fvalue),fpbinary);




当我这样做时,我得到了一些垃圾价值。



任何人都可以帮我解决



谢谢!!

解决方案

尝试:

 fread(amp; fvalue, sizeof (fvalue), 1 ,fpbinary); 


请参见此处 [ ^ ]了解参数类型的详细信息。

试试我的代码:







 file * r_file = null; 
float fd_value = 0 ;


r_file = fopen(" 1.bin"" rb");
if (null == r_file)
return ;

fread(amp; fd_value, 1 sizeof (fd_value),r_file );
fclose(r_file);


printf(" fd_value =%f\ n",fd_value);






祝你好运!

标签:如何二进制文件读取浮点



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