将字符串转换为十六进制

Convert a string into an hexadecimal

我有一个字符串文件,但其中的字符串代表十六进制值。例如,我的文件中有这样的字符串:

1091    A3B7    56FF    ...

而且我不想将它们用作字符串,而是用作十六进制值;然后将十六进制转换为 int。

例如:

1091(in string)---> 1091(in hexa)---> 4241 # The int value of 1091 in hexa

于是上网查了一下。我尝试了很多不同的方法,例如:

  1. Print a string as hex bytes?

  2. Convert hex string to int in Python

但没有完全符合我需要的东西,或者根本不起作用。

这是我的代码的一部分:

t = False
i = 0
while t != True and h != True or i <=100: # My way to look each string of my file
    file = row[1]
    read_byte = file[i]

    if read_byte == 'V': #V is the letter in my file which says that it s the data that I want then there is 2 kinds of channel 01 and 02 that interest me

        i=i+1
        a=i+2
        read_bytechannel = file[i:a]  #read 2 strings because the channel can be '01' or '02'

        if read_bytechannel == '01':
            print(read_bytechannel)
            i=i+1
            a=i+4
            read_bytetemp = file[i:a] # Reading 4 strings because the value is the int value of the two hexa.
            realintvalue= # (?????????convert the read_bytetemp string value into an hexa value, then into an int from the hexa)

            tempfinal = realintvalue/100 # I have to divide by 100 the int value to get the real temperature
            t = True # This condition just tell me that I already know the temporary

    i = i+1

这是我想要阅读的文件类型:

@
I01010100B00725030178
V01109103
I02020100B00725030148
V0215AA5C
$
@
>>> int('1091', 16)
4241

int 的第二个参数是解释第一个参数的基础。

您可以尝试这样的操作,以 16 为底的整数:

>>> my_string = "1091 A3B7 56FF"
>>> map(lambda x:int(x,16), my_string.split())
[4241, 41911, 22271]

或者你可以同时拥有:

>>> map(lambda x:[x,int(x,16)], my_string.split())
[['1091', 4241], ['A3B7', 41911], ['56FF', 22271]]

如果您对 lambdamap 不满意,您可以使用 列表理解:

>>> [[x,int(x,16)] for x in my_string.split()]
[['1091', 4241], ['A3B7', 41911], ['56FF', 22271]]