In other words, it's kind of a line-continuation character.
换句话说，它是什么样的行继续符。
Notice the continuation character (\); it allows the code to run to the next line.
请注意继续字符(\)；该字符可允许代码运行到下一行。
If an expression extends beyond a single line, you must use the line continuation character.
如果表达式超过一行，必须使用行继续符。
If an expression extends beyond a single line, you must use the line continuation character.
如果表达式超过一行，必须使用行继续符。
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