晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //lib64/python2.7/sunaudio.py
"""Interpret sun audio headers."""
from warnings import warnpy3k
warnpy3k("the sunaudio module has been removed in Python 3.0; "
         "use the sunau module instead", stacklevel=2)
del warnpy3k


MAGIC = '.snd'

class error(Exception):
    pass


def get_long_be(s):
    """Convert a 4-char value to integer."""
    return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3])


def gethdr(fp):
    """Read a sound header from an open file."""
    if fp.read(4) != MAGIC:
        raise error, 'gethdr: bad magic word'
    hdr_size = get_long_be(fp.read(4))
    data_size = get_long_be(fp.read(4))
    encoding = get_long_be(fp.read(4))
    sample_rate = get_long_be(fp.read(4))
    channels = get_long_be(fp.read(4))
    excess = hdr_size - 24
    if excess < 0:
        raise error, 'gethdr: bad hdr_size'
    if excess > 0:
        info = fp.read(excess)
    else:
        info = ''
    return (data_size, encoding, sample_rate, channels, info)


def printhdr(file):
    """Read and print the sound header of a named file."""
    hdr = gethdr(open(file, 'r'))
    data_size, encoding, sample_rate, channels, info = hdr
    while info[-1:] == '\0':
        info = info[:-1]
    print 'File name:  ', file
    print 'Data size:  ', data_size
    print 'Encoding:   ', encoding
    print 'Sample rate:', sample_rate
    print 'Channels:   ', channels
    print 'Info:       ', repr(info)

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