这样就不必将对象的指针保存在 HTML 元素中，并可以在所有事件模型中应用同样的 HTML 元素定位技术。

This would eliminate the need to save pointers to your objects in the HTML elements, and employ the same technique for locating the HTML element in all event models.

youdao

索引是用来定位数据页的顺序指针或键的集合。

Indexes are collections of sequentially ordered Pointers or keys used for locating data pages.

youdao

首先，把mydata list的内容写入文件，然后把文件指针重新定位到文件开头，并读入内容。

First you write the contents of the mydata list to the file, then you reposition the file pointer to the start of the file and read the contents.

youdao