I get a key error. Because, remember, these things are not ordered.
程序会返回一个键错误,因此,记住字典里的元素是无序的。
And most of these commands you don't actually need but this little caret symbol means control, so every keyboard these days has a control key so you hold that and hit X for instance to exit the program.
这里大多数命令你们都用不着,这个小插入符意味着控制,每个键盘都有一个控制键,譬如,当你敲入X时,就退出这个程序。
You hit control O to write out your program.
按住control,O键来写程序。
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