条件语句(Conditionals)允许代码根据问题的答案(真或假)来决定执行哪部分代码路径,实现逻辑上的“岔路口”。 比较运算符: > : 大于 >= : 大于或等于 < : 小于 <= : 小于或等于 == : 等于(比较左右两边是否相等) != : 不等于(由感叹号 ! 和等号 = 组成) 赋值运算符: ...
and的话,也就是并,只有当所有条件为True的时候,才会输出True,否则输出False,这根数学一样。 or,也就是或,A or B,只要任一方为真,则为真,否则为假。 而not,也就是非,如果原本是True,则not后输出False。 当然,你也可以同时几个判断一起来,这跟数学式子一样,执行顺序也是从左到右,来看看 联合几个判断 好...
若x被2除尽余0，则得到x is even，反之则执行第二个语句x is odd。这种选择称之为分支（branches），在执行流程中作为分支。4.6 链式条件（chainedconditionals）在有多于两种可能性的情况下，需要更多分支，这时就用链式条件（chained conditional）：elif是“else if”的缩写。elif语句数量不受限制；若有else语句...
Additionally, if you have several assertions or if __debug__: conditionals, then these command-line options can also make your code faster. Now, what effect does this optimization have on your assertions? It disables them. For an example, open your command line or terminal within the ...
This course will teach you how to “solve practical problems” using Python, covering topics such as data storage, conditionals, and loops. The course is designed for beginners and takes around three weeks to complete. You can work through it independently, with interactive quizzes to keep you...
Not Equal 不平等 LEARN MORE Python If-Elif-Else Multiple Conditionals Like And , Or 了解更多Python If-Elif-Else多个条件,例如和或 翻译自:https://www.poftut.com/python-conditionals-like-greater-lower-equal-operators-examples/ python 条件运算符...
(七)嵌套句型(Nested conditionals) AI检测代码解析 if x == y: print(0) else: if x>y: print(1) else: print(-1) 1. 2. 3. 4. 5. 6. 7. 要尽量少使用嵌套句型,因为这样会造成代码的可读性下降; 使用逻辑语句通常是减少嵌套的好办法; ...
Using return With Conditionals Returning True or False Short-Circuiting Loops Recognizing Dead Code Returning Multiple Named-Objects Returning Functions: Closures Taking and Returning Functions: Decorators Returning User-Defined Objects: The Factory Pattern Using return in try … finally Blocks Using return...
Introduction Basics Conditionals Functions Loops Arrays Generate Plots Automotive Data Debugging User Interaction Classes Solve Equations Data Analysis Data Regression Regression Statistics Optimization Tank Overflow Dynamic Simulation Other Tutorials Python Review ...
<= Less than or equivalent >= Greater than or equivalent If Statements We have seen these conditionals in action throughout this chapter, but they have been used in simple if statements. Let's look at a more complex example. #!/usr/bin/python import os myuid = os.get...