IF-ELSE --> CONDITION2: condition1 is false and condition2 is true IF-ELSE --> ELSE: all conditions are false 上面的关系图展示了多个if else语句的逻辑关系,当条件1为真时执行第一个代码块,当条件1为假且条件2为真时执行第二个代码块,当所有条件都为假时执行最后一个代码块。 多个if else语句的...
接下来,你需要使用if语句来进行多条件判断,根据不同的条件执行不同的操作。代码如下: # 条件判断ifcondition1:# 如果满足条件1,执行这里的代码print("条件1成立")elifcondition2:# 如果满足条件2,执行这里的代码print("条件2成立")elifcondition3:# 如果满足条件3,执行这里的代码print("条件3成立")else:# 如果...
False- the body ofelseexecutes, and the body ofifis skipped Let's look at an example. Working of if…else Statement Example: Python if…else Statement number = int(input('Enter a number: '))ifnumber >0:print('Positive number')else:print('Not a positive number')print('This statement ...
三、if elif else语句 The if elif else statement has one more elif, short for else if. The format of the Elif statement is similar to the if statement, "elif condition:". elif can occur multiple times, but it must be somewhere between if and else.今天的分享就到这里了，如果您对文章有...
else : print("Value of a is 10") Output: Value of a is 10 Flowchart: if .. elif .. else statement When there are multiple conditions to check, you can use the elif clause (short for "else if"). Python evaluates each condition one by one until it finds one that is True. If no...
Multiple conditions 类似这样的多个if/elif/elifs,如何向量化呢? 你可以调用np.where在任何情况下,代码长了就变得有点难读了 实际上有一个函数专门可以做多重条件的向量化,是什么呢? 5 numpy.select() 向量化if...elif...else。更简洁(甚至更快)和做多重嵌套np.where。
print("A")ifa > belseprint("B") Try it Yourself » This technique is known asTernary Operators, orConditional Expressions. You can also have multiple else statements on the same line: Example One line if else statement, with 3 conditions: ...
if (n := len(string)) < 8: ... print(f"Length {n} is too short, needs at least 8") ... else: ... print(f"Length {n} is okay!") ... >>> validate_length("Pythonista") Length 10 is okay! >>> validate_length("Python") Length 6 is too short, needs at least 8 ...
In CPython, theglobal interpreter lock, orGIL, is a mutex that protects access to Python objects, preventing multiple threads from executing Python bytecodes at once. The GIL prevents race conditions and ensures thread safety. GlobalInterpreterLock - Python Wiki ...
PYTHONOPTIMIZE If this is set to a non-empty string it is equivalent to specifying the -O option. If set to an integer, it is equivalent to specifying -O multiple times. PYTHONDEBUG If this is set to a non-empty string it is equivalent to specifying the -d option. If set to an in...