如果文件是用 C 创建的,如何 read/write 从 python 中的二进制文件中浮动值

How to read/write float values from a binary file in python, if the file was created with C

如果二进制文件是用 C 语言创建的,我想 read/write C 浮点值?

文件是这样创建的:

#include <stdio.h>

int main() {
    const int NUMBEROFTESTELEMENTS = 10;
    /* Create the file */
    float x = 1.1;
    FILE *fh = fopen ("file.bin", "wb");
    if (fh != NULL) {
       for (int i = 0; i < NUMBEROFTESTELEMENTS; ++i)
       {
            x = 1.1*i;
            fwrite (&x,1, sizeof (x), fh);
            printf("%f\n", x);
       }
        fclose (fh);
    }

    return 0;
}

found a method喜欢这样:

file=open("array.bin","rb")
number=list(file.read(3))
print (number)
file.close()

但这并不能保证读取的值是 C 浮点数。

import struct
with open("array.bin","rb") as file:
    numbers = struct.unpack('f'*10, file.read(4*10))
print (numbers)

这应该可以完成工作。 numbers 是 10 个值中的 tuple