python2和python3下不同的十进制转十六进制字符串的方法

注意这里转换的是带有符号位的十六进制，无符号的直接俄 hex（十进制）就可以了

#coding=utf-8
import platform
import struct

python_version = platform.python_version()[0:1]

def float_to_16(float_num):
    hex_string = struct.pack('h', float_num)

    if python_version == "2":
        """python版本不同处理流程不同"""
        print("2222")
        hex_string2 = hex_string.encode('hex')
        print (hex_string2)


    elif python_version == "3":
        print("3333")
        hex_string2 = hex_string.hex()
        print (hex_string2)

float_to_16(32)

python2输出：

E:condaaenvscv3python.exe E:/cv_two/Rebort2/cs1.py
2222
2000

python3输出：

PyDev console: starting.
Python 3.7.10 (default, Feb 26 2021, 13:06:18) [MSC v.1916 64 bit (AMD64)] on win32
runfile('E:/cv_one/Python/Rebort/cs1.py', wdir='E:/cv_one/Python/Rebort')
3333
2000