importredefcontains_chinese(s):pattern=re.compile(r'[\u4e00-\u9fff]')ifre.search(pattern,s):returnTruereturnFalse# 测试代码test_str1="这是一个中文字符串"test_str2="This is an English string"print(contains_chinese(test_str1))# 输出:Trueprint(contains_chinese(test_str2))# 输出:False 1....
passwords=['administrator','admin'] protectedResource ='http://localhost/secured_path'foundPass =Falseforuserinusers:iffoundPass:breakforpasswdinpasswords: encoded = base64.encodestring(user+':'+passwd) response = requests.get(protectedResource, auth=(user,passwd))ifresponse.status_code !=401:pri...
还有一种是,如果encode(‘gbk’),但是文件头# -*- coding:utf-8 -*-输出也会乱码。输出时不能使用print(pattern.encode(‘utf-8’), group.encode(‘utf-8’)),而应该分开print,否则还是乱码但是不报错。 标准输出的定义如下: sys.stdout = codecs.getwriter(“utf-8”)(sys.stdout.detach()) 查看输出...
title.string print(title) # 输出: 示例网站 9.3 案例3:正则表达式在日志分析中的应用 日志文件中,我们可能需要提取特定模式的信息: import re log_file = open("app.log", "r") error_pattern = re.compile(r"ERROR:\s*(.*)") for line in log_file: match = error_pattern.search(line) if matc...
However, if we only have the HTML snippet, fear not! It's not much trickier than catching a well-fed cat napping. We can simply specify the HTML tag in our expression and use a capturing group for the text: importre html_content ='Price : 19.99$'pattern =r'Price\s*:\s*(\d+\....
raw_X = (token_features(tok, pos_tagger(tok)) for tok in corpus) 1. 并通过以下方式传给哈希器: hasher = FeatureHasher(input_type='string') X = hasher.transform(raw_X) 1. 2. 得到一个scipy.sparse 类的矩阵X 。 这里需要注意的是,由于我们使用了Python的生成器,导致在特征抽取过程中引入了...
width * 1.2):continueregion.append(box)returnregiondefdetect(img):#1. 转化成灰度图gray =cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)#2. 形态学变换的预处理,得到可以查找矩形的图片dilation =preprocess(gray)#3. 查找和筛选文字区域region =findTextRegion(dilation)#4. 用绿线画出这些找到的轮廓forboxin...
()`` method, such asa file handle (e.g. via builtin ``open`` function) or ``StringIO``.sep : str, default ','Delimiter to use. If sep is None, the C engine cannot automatically detectthe separator, but the Python parsing engine can, meaning the latter willbe used and ...
$ chardetect 04-text-byte.asciidoc 04-text-byte.asciidoc: utf-8 with confidence 0.99 1. 2. 二进制序列编码文本通常不会明确指明自己的编码,但是 UTF 格式可以在文本内容的开头添加一个字节序标记。 BOM:有用的鬼符 UTF-16 编码的序列开头有几个额外的字节,如下所示: >>> u16 = 'El Niño'.en...
()=="自动": # 调用chardet库 encoding=chardet.detect(raw[:100000])['encoding'] if encoding is None: encoding='utf-8' self.coding.set(encoding) data=str(raw,encoding=self.coding.get()) except UnicodeDecodeError: f.seek(0) result=msgbox.askyesnocancel("PyNotepad","""%s编码无法解码此文件...