Python-十六进制与字符串转换脚本

Posted 2021-09-06 小狐狸FM

文章目录

• 前言
• 一、示例
• • [1]. Hex转str
  • [2]. Hex转Str（文件读取）
  • [3]. Str转Hex
  • [4]. Str转Hex（文件读取）
• 二、代码

前言

hex表示十六进制，str表示字符串
在输入十六进制数的时候可以以0x开头
在转换成十六进制的时候删除了0x的标识符，每两位是一个十六进制数

一、示例

[1]. Hex转str

[2]. Hex转Str（文件读取）

[3]. Str转Hex

[4]. Str转Hex（文件读取）

二、代码

# coding=utf-8
# 作者：小狐狸FM
# 功能：十六进制数与字符串转换
def GetList(string):
    '''输入字符串，两两组合返回列表'''
    result = []
    now = ""
    time = 1
    for i in string:
        now += i
        if time%2==0:
            result.append(now)
            now = ""
        time += 1
    return result
# print(GetList("123456"))
def CharToStr(hex_num):
    '''输入十六进制，输出十进制ascii对应的字符'''
    return chr(int(hex_num,16))
# print(CharToStr("2c"))
def ToStr(string):
    '''Hex转Str'''
    result = ""
    lis = GetList(string.replace("0x",""))
    for i in lis:
        result += CharToStr(i)
    return result
# print(ToStr("28372c37"))
def FileToStr(path,save):
    '''读取Hex文件，输出Str结果'''
    result = ""
    with open(path,"r") as fp:
        string = fp.read().replace("\\n","")
        lis = GetList(string.replace("0x", ""))
        for i in lis:
            result += CharToStr(i)
    with open(save,"w") as fp:
        fp.write(result)
# FileToStr("1.txt","2.txt")
def CharToHex(string):
    '''输入字符，输出十六进制，不支持输入字符串'''
    return str(hex(ord(string))).replace("0x", "")
# print(CharToHex(","))
def ToHex(string):
    '''Str转Hex'''
    result = ""
    for i in string:
        result += CharToHex(i)
    return result
# print(ToHex("7"))
def FileToHex(path,save):
    '''读取Str文件，输出Hex结果'''
    result = ""
    with open(path, "r") as fp:
        string = fp.read().replace("\\n", "")
        for i in string:
            result += CharToHex(i)
    with open(save, "w") as fp:
        fp.write(result)
# FileToHex("3.txt","4.txt")
if __name__ =='__main__':#主函数
    while True:
        print("==============================")
        print("     0. 退出")
        print("     1. Hex转Str")
        print("     2. Hex转Str(文件读取)")
        print("     3. Str转Hex")
        print("     4. Str转Hex(文件读取)")
        print("==============================")
        flag = int(input("请选择："))
        if flag==1:
            Hex = input("Hex:")
            print("Str:\\n",ToStr(Hex))
        elif flag==2:
            Hex_path = input("Hex文件路径:")
            Save_path = input("Str保存路径:")
            FileToStr(Hex_path,Save_path)
            print("处理结束!")
        elif flag==3:
            Str = input("Str:")
            print("Hex:\\n",ToHex(Str))
        elif flag==4:
            Str_path = input("Str文件路径:")
            Save_path = input("Hex保存路径:")
            FileToHex(Str_path,Save_path)
            print("处理结束!")
        else:
            break