python - 是否可以在 Python 中将长行分成多行？

Question

这个问题在这里已经有了答案:

How can I do a line break (line continuation) in Python? (10 个回答)

关闭 4年前。

就像 C 一样，您可以将一条长线分成多条短线。但是在 Python ，如果我这样做，会出现缩进错误...有可能吗？

Answer 1

来自 PEP 8 - Style Guide for Python Code :

The preferred way of wrapping long lines is by using Python's implied linecontinuation inside parentheses, brackets and braces. If necessary, youcan add an extra pair of parentheses around an expression, but sometimesusing a backslash looks better. Make sure to indent the continued lineappropriately.

隐式续行示例:

a = some_function(
    '1' + '2' + '3' - '4')

关于二元运算符周围的换行符，它继续说:

For decades the recommended style was to break after binary operators.But this can hurt readability in two ways: the operators tend to get scattered across different columns on the screen, and each operator is moved away from its operand and onto the previous line.

In Python code, it is permissible to break before or after a binary operator, as long as the convention is consistent locally. For new code Knuth's style (line breaks before the operator) is suggested.

显式续行示例:

a = '1'   \
    + '2' \
    + '3' \
    - '4'