3)把list return回来 return [iforiinrange(1, 101)] 没错这样你就通过list comprehension构成了一个1到100所有数字的list FOR LOOP with CONDITION 又是一枚栗子 如果我们想要create一个list让它里面每一个元素是1-100所有奇数的平方的话会怎么做? 还是分析下算法 1)空的list 2)循环1到100 3) 挑选出符合...
A basic list comprehension:[i*2 for i in [1, 5, 10]]Output: [2, 10, 20]List comprehension with if condition:[i*2 for i in [1, -2, 10] if i>0]Output: [2, 20]List comprehension with an if and else condition:[i*2 if i>0 else 0 for i in [1, -2, 10]]Output: [...
List comprehension with if condition fruits=['apple','banana','cherry','kiwi','mango']new_list=[fruitforfruitinfruitsif'a'infruit]print(new_list) Output: ['apple','banana','mango'] List comprehension with if-else condition numbers=[1,2,3,4,5]new_list=[numifnum%2==0else'odd'for...
[f(x) if condition else g(x) for x in sequence] And, for list comprehensions with if conditions only, [f(x) for x in sequence if condition] Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehension syntax, wh...
The syntax for including anif-elsestatement in a list comprehension is as follows. In this syntax,expression_if_trueis evaluated and included in the new list if theconditionistruefor theitem, otherwise,expression_if_falseis evaluated and included. ...
1.List Comprehension / Generator 表达式 我们来看一个简单的例子。如果你想将一个数组转换为另一个数组: result = []for item in item_list:new_item = do_something_with(item)result.append(item) 如果你喜欢 MapReduce,你也可以使用 map,或者 Python 中的 List Comprehension: ...
在Python中,列表理解(List Comprehension)是一种非常便捷的创建列表的方式。通过使用列表理解,您可以更加简洁快速地创建列表,并且减少代码的冗余度。 基本语法 列表理解的基本语法如下: new_list = [expression for item in iterable if condition] 其中,expression表示在迭代过程中对每个元素所执行的操作,item表示每个元...
With list comprehension you can do all that with only one line of code: Example fruits = ["apple","banana","cherry","kiwi","mango"] newlist = [xforxinfruitsif"a"inx] print(newlist) Try it Yourself » The Syntax newlist = [expressionforiteminiterableifcondition==True] ...
Note: When writing elif statements conditions in list comprehension, the last condition should be written first, else it will be overlooked. For example, if the fizzbuzz code is written like this, fizzbuzz = ['fizz' if num%3==0 else 'buzz' if num%5 ==0 else 'fizzbuzz' if num%3...
在Python编程中,列表(List)是一种非常常用的数据类型,它可以存储多个元素,并且支持各种操作和方法。有时候我们需要从一个列表中筛选出满足特定条件的元素,这时就可以借助Python的列表推导式(List Comprehension)来实现。 列表推导式(List Comprehension) 列表推导式是Python中一种简洁的语法,用于根据一个或多个输入序列中...