blocks|key|270586|text|您可以将字符串转换为整数生成器。对每个元素应用十六进制格式，并使用分隔符插入：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270587|>>>+s+=+"Hello,+World!"
>>>+":".join("{:02x}".format(ord(c))+for+c+in+s)
'48:65:6c:6c:6f:2c:20:57:6f:72:6c:64:21|code-block|syntax|javascript|270588|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can transform your string to an integer generator. Apply hexadecimal formatting for each element and intercalate with a separator:
<pre><code>&gt;&gt;&gt; s = &quot;Hello, World!&quot;
&gt;&gt;&gt; &quot;:&quot;.join(&quot;{:02x}&quot;.format(ord(c)) for c in s)
'48:65:6c:6c:6f:2c:20:57:6f:72:6c:64:21
</code></pre>

blocks|key|270592|text|':'.join(x.encode('hex')+for+x+in+'Hello,+World!')|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|270593|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>':'.join(x.encode('hex') for x in 'Hello, World!')
</code></pre>

blocks|key|487731|text|另一个两行的答案可能更容易阅读，有助于调试字符串中的换行或其他奇怪字符：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|487732|对于Python+2.7|487733|for+character+in+string:
++++print+character,+character.encode('hex')|code-block|syntax|javascript|487734|对于Python+3.7+(未在3的所有版本上进行测试)|487735|for+character+in+string:
++++print(character,+character.encode('utf-8').hex())|487736|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Another answer in two lines that some might find easier to read, and helps with debugging line breaks or other odd characters in a string:

For Python 2.7

<pre class="lang-py prettyprint-override"><code>for character in string:
 print character, character.encode('hex')
</code></pre>

For Python 3.7 (not tested on all releases of 3)

<pre class="lang-py prettyprint-override"><code>for character in string:
 print(character, character.encode('utf-8').hex())
</code></pre>

blocks|key|270669|text|您可以使用hexdump的：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|270670|import+hexdump
hexdump.dump("Hello,+World!",+sep=":")|code-block|syntax|javascript|270671|(如果需要小写，请附加.lower()+)。这对Python+2和Python+3都有效。|270672|entityMap|0|LINK|mutability|MUTABLE|url|https://pypi.python.org/pypi/hexdump^0|5|7|5|7|0|0|0|B|8|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

You can use <a href="https://pypi.python.org/pypi/hexdump" rel="nofollow noreferrer"><code>hexdump</code></a>'s:
<pre><code>import hexdump
hexdump.dump(&quot;Hello, World!&quot;, sep=&quot;:&quot;)
</code></pre>
(append <code>.lower()</code> if you require lower-case). This works for both Python 2 and 3.

blocks|key|270709|text|使用map和lambda函数可以生成十六进制值的列表，该列表可以打印(或用于其他目的)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270710|>>>+s+=+'Hello+1+2+3+\x01\x02\x03+:)'

>>>+map(lambda+c:+hex(ord(c)),+s)
['0x48',+'0x65',+'0x6c',+'0x6c',+'0x6f',+'0x20',+'0x31',+'0x20',+'0x32',+'0x20',+'0x33',+'0x20',+'0x1',+'0x2',+'0x3',+'0x20',+'0x3a',+'0x29']|code-block|syntax|javascript|270711|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Using map and lambda function can produce a list of hex values, which can be printed (or used for other purposes)

<pre><code>&gt;&gt;&gt; s = 'Hello 1 2 3 \x01\x02\x03 :)'

&gt;&gt;&gt; map(lambda c: hex(ord(c)), s)
['0x48', '0x65', '0x6c', '0x6c', '0x6f', '0x20', '0x31', '0x20', '0x32', '0x20', '0x33', '0x20', '0x1', '0x2', '0x3', '0x20', '0x3a', '0x29']
</code></pre>

blocks|key|487845|text|只是为了方便，非常简单。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|487846|def+hexlify_byteString(byteString,+delim="%25"):
++++'''+Very+simple+way+to+hexlify+a+byte+string+using+delimiters+'''
++++retval+=+""
++++for+intval+in+byteString:
++++++++retval+%2B=+('0123456789ABCDEF'[int(intval+/+16)])
++++++++retval+%2B=+('0123456789ABCDEF'[int(intval+%25+16)])
++++++++retval+%2B=+delim
++++return(retval[:-1])

hexlify_byteString(b'Hello,+World!',+":")
#+Out[439]:+'48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'|code-block|syntax|javascript|487847|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Just for convenience, very simple.
<pre><code>def hexlify_byteString(byteString, delim=&quot;%&quot;):
 ''' Very simple way to hexlify a byte string using delimiters '''
 retval = &quot;&quot;
 for intval in byteString:
 retval += ('0123456789ABCDEF'[int(intval / 16)])
 retval += ('0123456789ABCDEF'[int(intval % 16)])
 retval += delim
 return(retval[:-1])

hexlify_byteString(b'Hello, World!', &quot;:&quot;)
# Out[439]: '48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'
</code></pre>

blocks|key|270767|text|对于提供比''.format()更高性能的东西，您可以使用以下命令：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|270768|>>>+':'.join(+'%2502x'%25(v+if+type(v)+is+int+else+ord(v))+for+v+in+'Hello,+World!'+)
'48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'
>>>+
>>>+':'.join(+'%2502x'%25(v+if+type(v)+is+int+else+ord(v))+for+v+in+b'Hello,+World!'+)
'48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'
>>>+|code-block|syntax|javascript|270769|我很抱歉这看起来不能再好了。|270770|如果一个人能简单地做'%2502x'%25v就好了，但那只需要int...|270771|但是，如果没有选择ord(v)的逻辑，您将不得不使用字节串b''。|270772|entityMap^0|5|B|0|0|0|A|8|0|9|6|T|3|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|R|$]]

For something that offers more performance than <code>''.format()</code>, you can use this:
<pre><code>&gt;&gt;&gt; ':'.join( '%02x'%(v if type(v) is int else ord(v)) for v in 'Hello, World!' )
'48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'
&gt;&gt;&gt; 
&gt;&gt;&gt; ':'.join( '%02x'%(v if type(v) is int else ord(v)) for v in b'Hello, World!' )
'48:65:6C:6C:6F:2C:20:57:6F:72:6C:64:21'
&gt;&gt;&gt; 
</code></pre>
I am sorry this couldn't look nicer.
It would be nice if one could simply do <code>'%02x'%v</code>, but that only takes int...
But you'll be stuck with byte-strings <code>b''</code> without the logic to select <code>ord(v)</code>.

blocks|key|270812|text|对于那些不关心Python+3或冒号的人来说，这是一个更一般的概念：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270813|from+codecs+import+encode

data+=+open('/dev/urandom',+'rb').read(20)
print(encode(data,+'hex'))++++++#+Data

print(encode(b"hello",+'hex'))++#+String|code-block|syntax|javascript|270814|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A bit more general for those who don't care about Python 3 or colons:
<pre><code>from codecs import encode

data = open('/dev/urandom', 'rb').read(20)
print(encode(data, 'hex')) # Data

print(encode(b&quot;hello&quot;, 'hex')) # String
</code></pre>

blocks|key|270909|text|使用f-string：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270910|"".join(f"{ord(c):x}"+for+c+in+"Hello")|code-block|syntax|javascript|270911|使用任意分隔符：|270912|>>>+"⚡".join(f"{ord(c):x}"+for+c+in+"Hello")
'48⚡65⚡6c⚡6c⚡6f'|270913|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

With f-string:
<pre class="lang-py prettyprint-override"><code>&quot;&quot;.join(f&quot;{ord(c):x}&quot; for c in &quot;Hello&quot;)
</code></pre>
Use any delimiter:
<pre class="lang-py prettyprint-override"><code>&gt;&gt;&gt; &quot;⚡&quot;.join(f&quot;{ord(c):x}&quot; for c in &quot;Hello&quot;)
'48⚡65⚡6c⚡6c⚡6f'
</code></pre>

I have this string: <code>Hello, World!</code> and I want to print it using Python as '48:65:6c:6c:6f:2c:20:57:6f:72:6c:64:21'.
<code>hex()</code> works only for integers.
How can it be done?

Print a string as hexadecimal bytes

Python

我有这个字符串：Hello, World!，我想用Python把它打印成'48:65:6c:6c:6f:2c:20:57:6f:72:6c:64:21‘。hex()仅适用于整数。怎么做呢？

问将字符串打印为十六进制字节
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