调用与排序 1、编一个程序从一个文本文件source.txt中读入若干整数，用选择法将这些数据排成升序，将排序后的结果写入另一个文件文本文件target.txt中。注意两个文件均在d盘的data文件夹中。

在程序运行前，先准备好输入数据文件source.txt，放入d盘的data文件夹中，内容可以如下：......

程序运行结束后，查看d盘的data文件夹中的结果文件target.txt内容是否正确。

-Call and order one, compiled a program from a text file into a number of integers read source.txt, select the method with these data arranged in ascending order, sort the results will be written to another file in a text file target.txt. Note that two files are in d drive the data folder. Before the program runs, the first ready to enter the data file source.txt, d drive into the data folder, the content can be run as follows :...... After viewing the data folder d drive results in File target.txt content is correct.