指针数组的应用。编辑、注释、运行、调试自己编写的程序. 请编写一个程序,先读入一段正文,然后删除其中的单词from、in、at、an和on,最后显示该结果文本段. -Applications pointer array. Edit, annotate, run, debug, write your own programs., Please write a program, first read the section of the text, and then delete the w