Word-break and overflow-wrap (formerly word-wrap) do differently when dealing with long words or unbreakable content. 1. Word-break controls how to break lines of words in block elements, break-all forces long words to break, keep-all avoids breaking, suitable for Chinese, Japanese and Korean texts. 2. Overflow-wrap disconnects long words when necessary to prevent overflow, break-word makes the context more intelligent. 3. In usage scenarios, use word-break:break-all for code, and use overflow-wrap:break-word for user comments. 4. Pay attention to differences in browser compatibility and different mobile behaviors

Use the ::selection pseudo-element of CSS to customize the highlighting style when the web page text is selected to improve the aesthetics and unity of the page. 1. Basic settings: define background-color and color through ::selection, such as yellow background with dark gray fonts; specific elements such as p::selection can also be limited. 2. Compatibility processing: Add the -webkit- prefix to be compatible with Safari and mobile browsers, and the Firefox and Edge standards are well supported. 3. Pay attention to readability: Avoid excessive color contrast or too fancy, and should be coordinated with the overall design. For example, choose a soft blue base in dark mode to improve visual comfort. Reasonable use can enhance the texture of the interface, ignore details

The key to using Python to call WebAPI to obtain data is to master the basic processes and common tools. 1. Using requests to initiate HTTP requests is the most direct way. Use the get method to obtain the response and use json() to parse the data; 2. For APIs that need authentication, you can add tokens or keys through headers; 3. You need to check the response status code, it is recommended to use response.raise_for_status() to automatically handle exceptions; 4. Facing the paging interface, you can request different pages in turn and add delays to avoid frequency limitations; 5. When processing the returned JSON data, you need to extract information according to the structure, and complex data can be converted to Data

The white-space attribute is used in CSS to control the processing of blank spaces in elements, mainly affecting the display behavior of spaces, tabs and newlines. Common values include: 1.normal (default value, blank collapses into one space, automatic line break); 2.pre (keep all blanks, only line breaks at newlines); 3.nowrap (fold blank but not line breaks); 4.pre-wrap (keep blank, line breaks allow); 5.pre-line (fold blank, line breaks in the source code). When you need to keep the code indent or chat record format, it is recommended to use pre-wrap; for long words or URLs that cause layout overflow, you can combine word-break or overflo

Updating a JSON file requires three steps: reading, modifying, and writing. 1. Use json.load() to read the file into a Python data structure; 2. Access the modified value through keys such as data['age']=31 or nested modification; 3. Use json.dump(data,f) to save the changes back to the file and it is recommended to add indent to beautify the output. Before operation, you should confirm that the file exists and backups should be made if necessary. Remote data must be processed in conjunction with the requests module.

Magic methods (dunder methods) in Python are special methods used to customize object behavior. They start and end with a double underscore, such as __init__ or __str__, and are automatically triggered when a specific syntax or built-in function is used. 1.__init__ is used to initialize the object; 2.__str__ and __repr__ define the readable string representation and reconstructible expression of the object respectively; 3.__add__, __sub__, etc. define the addition and subtraction operation behaviors; 4. Control and comparison operations such as __eq__, __lt__, etc. Implementing these methods, such as adding __add__ to custom class Point to support operations, makes the class behave more naturally and in line with expectations. make

When using ifelse in listcomprehension, the conditional judgment must be placed before the expression. The basic structure is: [Expression Aif condition else expression Bfor element in iterable object]; for example, [xifx%2==0else0forxinrange(10)] can retain even numbers and replace odd numbers to 0; multiple conditions can be nested expressions, such as ['negative'ifx

To override inherited CSS styles, the core approach is to increase the priority of custom styles. 1. You can add!important after the attribute (use with caution, only if necessary). 2. Improve selector specificity, such as using ID or adding class names. 3. Adjust the loading order of the style sheet and place the custom styles at the end to introduce them. 4. Use inline styles (non-regular use is not recommended), which has extremely high priority but is difficult to maintain. Using these techniques rationally can effectively resolve style conflict problems.