Quick reference manual for other common APIs of python3 (continuously updating ing...)

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Last updated ：2022.6.27
Earliest update time ：2022.6.27

1. character string
   1. lower()： All lowercase letters
   2. strip()： Remove the leading and trailing spaces of the string
   3. strip(chars:str)： Remove all... From the beginning and end of the string chars The characters that appear in （ Pay attention to this chars It's a string, so it can't be in regular expression format ）
   4. endswith(chars:str)： Returns a Boolean value , Whether the string uses chars As the end
2. aggregate
   1. intersection ：set.intersection(set1, set2 ... etc)： Returns the intersection of the input parameter set
3. eval(str)： Execute an expression in string format , And return the expression result
4. abnormal ：raise Exception(message:str) Exception Can be replaced by other Exception Subclass .
5. Print all properties of the object ：object.__dict__
   
   

Reference materials in the process of writing this article ：

1. Python3 lower() Method | Novice tutorial
2. Python3 strip() Method | Novice tutorial
3. Python3 Errors and exceptions | Novice tutorial
4. Python3 aggregate | Novice tutorial
5. Python Set intersection() Method | Novice tutorial
6. Python Print all attributes of an object _ Come and play the devil's Dong ！ Technology blog _51CTO Blog