问题描述
假设 x 是整数，构造如果x：在功能上与 if x！= 0：在Python中。一些语言的样式指南明确禁止前者 - 例如，ActionScript / Flex的样式指南声明，你不应该为这种事情隐式地转换一个int到bool。
Assuming that x is an integer, the construct if x: is functionally the same as if x != 0: in Python. Some languages' style guides explicitly forbid against the former -- for example, ActionScript/Flex's style guide states that you should never implicitly cast an int to bool for this sort of thing.
Python有偏好吗？
Does Python have a preference? A link to a PEP or other authoritative source would be best.
推荐答案
结构： if x： 通常用于检查布尔值。
The construct: if x: is generally used to check against boolean values.
对于 int 显式 x！= 0 是首选的 - 沿着显式比隐式（）。
For ints the use of the explicit x != 0 is preferred - along the lines of explicit is better than implicit (PEP 20 - Zen of Python).
这篇关于在Python中首选哪个`if x：`或`if x！= 0：`？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！