大数据文件编辑器的设计与实现

Design and Implemantation of Large Data File Editor

在石油软件研制中,经常需要对大数据文件(几十兆、几百兆)进行显示和编辑,若采用普通的文本编辑器会占用大量的物理内存,而且系统长时间无响应,从而系统的运行效率急剧下降。设计了一个大数据文件编辑器,采用分页的方式读取文件,很好地解决了大数据文件的显示和编辑的问题。

In the development of petroleum software, it always needs to display and edit the large data file from tens of megabytes to hundreds of megabytes. If using regular text editor, a large number of physical memory will be occupied in procedure. Moreover, the system cannot respond to the action immediately, which results in decreasing efficiency of runtime. This article designes a new type of data file editor that adopts paging mode to read files, which can be used to solve the problems referred to efficiently.