Now just to get used to the conventions, 0 because this is the program you'll use not for problems at 0 but for 1 to start writing programs, notice at the top in this window just reminds you what you're working on.
我们要入乡随俗,习惯这样的界面,因为这是你们将要用到的程序,不是为习题集0,而是0,而是为习题集1开始写程序的,注意窗口顶部,这是用来提醒你,你工作在何种环境。
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