In the former case, the first dot file found in the precedent chain is definitive.

在第一种情况下，优先链中第一个点文件的优先权是不容置疑的。

youdao

Notice the shell prompt: It reflects the user name, the short hostname (everything before the first dot), and the command number.

请注意Shell提示符：它反映出了用户名、简写的主机名(第一个点前面的部分)、以及命令编号。

youdao

Note: In the dot syntax the first element is element zero, and in the bracket syntax, the first element is element 1.

注意：在点语法中，第一个元素是编号为 0 的元素，而在括号语法中，第一元素是编号为 1 的元素。

youdao

So the first thing it does, price=0 is it says, if self dot price is 0, I'm just going to return.

所以它做的第一件事就是，如果self。,我就返回。

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