This article explains in detail the methods, properties, and iterator construction methods in Python: The construction method represents an initialization method called init similar to the one used in previous examples. When an object is created, the construction method will be called immediately. >>> class FooBar: Def __init__(self): self.somevar=42 >>> f=FooBar() >>> f.somevar >>> class fO SyntaxError: invalid
1. Detailed explanation of methods, properties, and iterators in python
Introduction: This article explains in detail the methods, attributes, and iterators in python
2. Detailed explanation of how to use Selenium, the python crawler tool
Introduction: Ordinary urllib2 cannot be implemented when using python to crawl dynamic pages. For example, the following JD.com homepage, with the scroll bar The drop-down will load new content, but urllib2 cannot crawl this content. At this time, today's protagonist selenium is needed.
3. Pyhon Get the size statistics of the folder
Introduction: Folder size statistics are implemented through Python: mainly through several methods in import os.
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