1>>>dir(print)2['__call__','__class__','__delattr__','__dir__','__doc__','__eq__','__format__','__ge__','__getattribute__','__gt__','__hash__','__init__','__le__','__lt__','__module__','__name__','__ne__','__new__','__qualname__','...
NameError: name 'raw_input' is not defined 由于python3.x系列不再有 raw_input函数,3.x中 input 和从前的 raw_input 等效,把raw_input换成input即可。 SyntaxError: multiple statements found while compiling a single statement 这是因为整体复制过去运行而产生的错误;解决方案如下: 方法一:先将第一行复制...
This function removes all subelements, clears all attributes, and sets the text and tail attributes to None. """ self.attrib.clear() self._children = [] self.text = self.tail = None def get(self, key, default=None): 获取当前节点的属性值 """Get element attribute. Equivalent to attrib....
比如“< a class=“poet” href=“http://example.com/dufu” id=“link1”>杜甫< /a>”,通过调用find_all(‘a’)函数获取所有超链接的HTML源码,再调用get(‘href’)获取超链接的内容,href属性对应的值为:http://example.com/dufu。如果想获取文字内容,则调用get_text()函数。 代码语言:javascript 复制 ...
第一个优点：列表里想装啥就装啥，即：他可以包含不同种类、任意类型的对象，甚至可以嵌套列表，专业点...
BeautifulSoup技术静夜思窗前明月光,疑似地上霜。举头望明月,低头思故乡。李白(701年-762年),字太白,号青莲居士,又号“谪仙人”, 唐代伟大的浪漫主义诗人,被后人誉为“诗仙”,与杜甫并称为“李杜”,为了与另两位诗人李商隐、
"""使用getattr和getattributes时注意避免循环""" class Person: def __init__(self, name): # On [Person()] self._name = name # 2 Triggers __setattr__! def __getattr__(self, attr): # On [obj.undefined] if attr == 'name': ...
The @property decorator is used to customize getters and setters for class attributes. Expand the box below for an example using these decorators:Example using built-in class decoratorsShow/Hide Next, define a class where you decorate some of its methods using the @debug and @timer decorators ...
>>> root = tree.getroot()>>> root.tag, root.attrib('collection', {'shelf': 'New Arrivals'}) 1. 4)根元素也具备遍历其直接子元素的接口: >>> for child_of_root in root:... print(child_of_root.tag, child_of_root.attrib)...class {'className': '1班'}class {'className': '2班...
LOG_LINE_NUM=0classMY_GUI():def__init__(self,init_window_name):self.init_window_name=init_window_name#设置窗口defset_init_window(self):self.init_window_name.title("文本处理工具_v1.2")#窗口名#self.init_window_name.geometry('320x160+10+10') #290 160为窗口大小,+10 +10 定义窗口弹出...