我写了一个解码sms PDU的程序如下：
def to_chinese(userdata):
    '''
    Translate the userdata string  into Chinese
    and save it in a tuple list
    '''
    result=[]
    ud=split_userdata(userdata) #split the userdata into 2byte in a word
   
     for word in ud:  #for each 2Bytes word in userdata list
        result.append(unicode(unichr(int(word,16))))    #to Chinese
               
    return result

def print_pdu(seq,pdu):
    print '\r'
    print '    No.: %s\r' % seq
    print '   HEAD: %s\r' % pdu['HEAD']
    print '   TYPE: %s\r' % pdu['TYPE']
    print '   TIME: %s\r' % get_time(pdu['TIME'])
    print 'TEL NUM: %s\r' % get_isdn(pdu['ADD-NUM'])
   
    s=''.join(to_chinese(pdu['UD']))
    print 'CONTENT: %s\r' % s

在解一个特殊的PDU时，在pythonwin（python2.4.1）下执行时没有遇到错误，但 
输出了“？？”字符，然后继续执行后面的语句。但在 windows命令行下执行却发生 
以下错误，并停了下来。这是为什么？

Traceback (most recent call last):
  File "readsms.py", line 203, in ?
    main()
  File "readsms.py", line 200, in main
    print_pdu(c+1,a)
  File "readsms.py", line 147, in print_pdu
    print 'CONTENT: %s\r' % s
UnicodeEncodeError: 'gbk' codec can't encode character u'\u0500' in 
position 9:
illegal multibyte sequence

字符串转换编码时,如果有一个字符不能被转换,那么就会引起一个UnicodeError异常.比如,如果编码为'ascii', Unicode字符U+1F28
就不能被转换,因为它的值太大. 同样地,字符串 "\xfc" 也不能被转换到Unicode,因为它包含一个在ASCII字符之外的字符
pythinwin 在转换编码的时候 unicode(s [, encoding [,errors ]]) 中 errors参数应该为replace
而windows命令行下为默认 , strict


2006/1/26, Liu Jun <gz19990909 at 163.com>:
>
>
> 我写了一个解码sms PDU的程序如下：
> def to_chinese(userdata):
>    '''
>    Translate the userdata string  into Chinese
>    and save it in a tuple list
>    '''
>    result=[]
>    ud=split_userdata(userdata) #split the userdata into 2byte in a word
>
>     for word in ud:  #for each 2Bytes word in userdata list
>        result.append(unicode(unichr(int(word,16))))    #to Chinese
>
>    return result
>
> def print_pdu(seq,pdu):
>    print '\r'
>    print '    No.: %s\r' % seq
>    print '   HEAD: %s\r' % pdu['HEAD']
>    print '   TYPE: %s\r' % pdu['TYPE']
>    print '   TIME: %s\r' % get_time(pdu['TIME'])
>    print 'TEL NUM: %s\r' % get_isdn(pdu['ADD-NUM'])
>
>    s=''.join(to_chinese(pdu['UD']))
>    print 'CONTENT: %s\r' % s
>
> 在解一个特殊的PDU时，在pythonwin（python2.4.1）下执行时没有遇到错误，但
> 输出了"？？"字符，然后继续执行后面的语句。但在 windows命令行下执行却发生
> 以下错误，并停了下来。这是为什么？
>
> Traceback (most recent call last):
> File "readsms.py", line 203, in ?
>    main()
> File "readsms.py", line 200, in main
>    print_pdu(c+1,a)
> File "readsms.py", line 147, in print_pdu
>    print 'CONTENT: %s\r' % s
> UnicodeEncodeError: 'gbk' codec can't encode character u'\u0500' in
> position 9:
> illegal multibyte sequence
>
>
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