查单词的脚本，单词脚本,#!/usr/bin/p

查单词的脚本，单词脚本,#!/usr/bin/p

#!/usr/bin/python# coding:utf-8 # usage1: 'python **.py word' to find the word's explination or# usage2: 'python **.py word -detail' to list the phrase of the wordfrom bs4 import BeautifulSoupimport sysimport urllib2# 判断用户输入的是英文还是中文# decode 是将其他字符编码转换成unicode# 中文的unicode字符区是 'u4e00' 到 '\\u9fa5'def is_Chinese(uchar):    uchar = uchar.decode('utf8')    return uchar >= u'\\u4e00' and uchar <= u'\\u9fa5'# 格式输入错误的提示def input_error():    print "usage1: 'python **.py word' or "    print "usage2: 'python **.py word -detail (For English Only)"def main():    length = len(sys.argv)    # 读入命令行    if length < 2:        input_error()        sys.exit()    else:        word = sys.argv[1]        # url是有道翻译的对应网页    url = 'http://dict.youdao.com/search?le=en&q=%s&keyfrom=dict.index' % word    # urlopen函数调用    # print url    data = urllib2.urlopen(url).read()    # print data    # 将data网页源代码放到soup中，便于匹配    soup = BeautifulSoup(data)    # soup.find() 可以放入标签和class名称    word_div = soup.find('div', 'trans-container')    if not word_div:        print 'word does not exists'        sys.exit()    # word_div存了一个标签，每个单词意思，存在每个<li>**</li>中,格式化输出，不带'<li></li>'    if is_Chinese(word):        for word_explination in word_div.find_all('a', 'search-js'):            print word_explination.string    else:        for word_explination in word_div.find_all('li'):            print str(word_explination)[4: -5]    # 第二种输入，还得显示出单词组成的短语    # BeautifulSoup提供的find函数可以查找'p', 'a','span'等html标志语言模块    if length == 3:        if sys.argv[2] != '-detail':            input_error()        else:            raw_explination = ''            span = soup.find_all('p', 'wordGroup')            # 最后一组词组有问题，删去了            for element in span[: -1]:                link = element.find('a')                # 转化成字符串，用于定位到解释那里                raw_explination += str(element)                location = raw_explination.find('</span>')                # 格式化单词解释，</span>长度为7, </p>长度为4, 只采用第一个意思                explination = raw_explination[location + 7: -4].split()[0]                # python 自带的输出对齐, ljust(num), rjust(num)                print link.string.ljust(25), explination                raw_explination = ''if __name__ == '__main__':    main()#该片段来自于http://byrx.net