location
Identifies an element in the document.
A location uniquely identifies an element in the document and lets you
access its absolute position on the pages. You can retrieve the current
location with the locate function and the location of a queried
or shown element with the location() method on
content.
定义定义这些函数和类型带有附属定义。要访问这种定义，请先写上函数或类型的名称，再加上定义的名称，并用句点在中间分隔。
page
Return the page number for this location.
Note that this does not return the value of the page counter at this location, but the true page number (starting from one).
If you want to know the value of the page counter, use
counter(page).at(loc) instead.
position
Return a dictionary with the page number and the x, y position for this location. The page number starts at one and the coordinates are measured from the top-left of the page.
If you only need the page number, use page() instead as it allows
Typst to skip unnecessary work.
page-numbering
Returns the page numbering pattern of the page at this location. This can be used when displaying the page counter in order to obtain the local numbering. This is useful if you are building custom indices or outlines.
If the page numbering is set to none at that location, this function
returns none.