# code to be executed if condition1 is False and condition2 is True else:# code to be executed if condition1 and condition2 are False ```condition1`和`condition2`是两个布尔表达式，如果它们的值为True，则执行相应的代码块；否则执行else语句中的代码块。下面的代码演示了如何使用else if语句来判断...
否则,继续执行其他代码。 示例代码 下面是一个完整的示例代码,演示了如何使用条件语句来停止运行Python脚本: importsysdefstop_running(condition):ifcondition:sys.exit(0)else:print("继续执行其他代码")# 测试条件stop_running(True)print("这行代码不会被执行")stop_running(False)print("这行代码会被执行") 1...
if condition: # code to be executed if condition is True else: # code to be executed if condition is False 下面的代码演示了如何使用if语句来判断一个数是否为正数: num = int(input("请输入一个整数:")) if num > 0: print("输入的数是正数") else: print
最常见的流程控制语句是if语句。如果语句的条件是True,那么if语句的子句(即if语句后面的块)将会执行。如果条件为False,则跳过该子句。 简单地说,if语句可以理解为,“如果这个条件为真,则执行子句中的代码”。在 Python 中,if语句由以下内容组成: if关键字 条件(即计算结果为True或False的表达式) 一个冒号 从下...
Note python has this really weird error if you define local variable in a function same name as the global variable, program will promptUnboundLocalError. child class object overrides parent class methods input: classfruit:defprint(self):print('a')defeat(self):print('b')classapple(fruit):defpr...
If none of our if and elif statements return true, the default condition is else. Now let's look at a modified example where we use a function that checks to see if we can read the shadow file. We test this with the os.access method. We want to know if we can read the file, ...
If you wanted to debug remote code or code running in a docker container, on the remote machine or container, you would need to modify the previous CLI command to specify a host. python-mdebugpy--listen0.0.0.0:5678./myscript.py
Python 使用的是左闭右开区间,意思是切片区间包含 start,但不包含 stop。如果省略了start 或者 stop,则切片会分别包含从头开始或者从末尾开始的所有元素。step 决定了切片的方向和步长。如果令步长为 2,那么切片就会从左到右每两个元素取一个值;如果令步长为 -3,则切片会从右到左每 3 个元素取一个值。默认步...
The deployment stage is run if the build stage completes successfully. The following keywords define this behavior:yml Copy dependsOn: Build condition: succeeded() The deployment stage contains a single deployment job configured with the following keywords:...
To set conditions, right-click the breakpoint's red dot, select Condition, then create expressions using Python code. For full details on this feature in Visual Studio, see Breakpoint conditions.When setting conditions, you can also set Action and create a message to log to the ...