print('yes') if conditionX else print('nah') 1. 有些(很多:)可能不喜欢它是非Python风格的(甚至是红宝石色的:),但我个人认为它更自然-即您通常的表达方式,并且在大块代码中更具视觉吸引力。 #9楼 不同编程语言的三元运算符 在这里,我只是试图说明几种编程语言之间在ternary operator一些重要区别。 Javasc...
# Shorthand if-else statement in Python The ternary operator can also be used if you need a shorthand if-else statement. The ternary operator will return the value to the left if the condition is met, otherwise, the value in the else statement is returned. ...
one_line = 'yes' if predicate(value) else 'no'slightly_split = ('yes' if predicate(value) else 'no, nein, nyet')the_longest_ternary_style_that_can_be_done = ( 'yes, true, affirmative, confirmed, correct' if predicate(value) else 'no, false, negative, nay') No: bad_line_bre...
one_line = 'yes' if predicate(value) else 'no' slightly_split = ('yes' if predicate(value) else 'no, nein, nyet') the_longest_ternary_style_that_can_be_done = ( 'yes, true, affirmative, confirmed, correct' if predicate(value) else 'no, false, negative, nay') No: bad_line_bre...
slightly_split = ('yes' if predicate(value) else 'no, nein, nyet') the_longest_ternary_style_that_can_be_done = ( 'yes, true, affirmative, confirmed, correct' if predicate(value) else 'no, false, negative, nay') 1. 2. 3. ...
简单情况可以使用.每个部分(真值表达式,if表达式,else表达式)必须在一行内完成.如果使用条件表达式很富的时候使用完整的if语句. Yes: one_line = 'yes' if predicate(value) else 'no' slightly_split = ('yes' if predicate(value) else 'no, nein, nyet') the_longest_ternary_style_that_can_be_done =...
2.2.4 Decision Use import x for importing packages and modules. Use from x import y where x is the package prefix and y is the module name with no prefix. Use from x import y as z if two modules named y are to be imported or if y is an inconveniently long name. Use import y ...
slightly_split = ('yes'ifpredicate(value) else'no, nein, nyet') the_longest_ternary_style_that_can_be_done = ( 'yes, true, affirmative, confirmed, correct' ifpredicate(value) else'no, false, negative, nay') No: bad_line_breaking = ('yes'ifpredicate(value)else ...
简单情况可以使用.每个部分(真值表达式,if表达式,else表达式)必须在一行内完成.如果使用条件表达式很富的时候使用完整的if语句. Yes: one_line ='yes'ifpredicate(value)else'no' slightly_split = ('yes'ifpredicate(value)else'no, nein, nyet')the_longest_ternary_style_that_can_be_done = ('yes, true...
Breaks encapsulation: Such design can make it hard to achieve valid objectives. For example, if global state is used to manage a database connection, then connecting to two different databases at the same time (such as for computing differences during a migration) becomes difficult. Similar probl...