如何访问eval-buffer的结果？

Question

Two questions: 两个问题：

Where does the result of eval-buffer get stored? eval-buffer的结果存储在哪里？ How do I access it? 我该如何访问它？
For example: 例如：
```
 (+ 2 2) 
```
Functions like (forward-word) are executed by eval-buffer , but do not move the cursor? 像(forward-word)这样的eval-buffer是由eval-buffer执行的，但是不要移动光标？ Why is that? 这是为什么？

Answer 1

eval-buffer is usually used for side-effects, rather than return value. eval-buffer通常用于副作用，而不是返回值。 For example, in your .emacs file, eval-buffer will re-load all our config settings. 例如，在.emacs文件中， eval-buffer将重新加载所有配置设置。 By default, and when used interactively, it will always return nil . 默认情况下，当以交互方式使用时，它将始终返回nil 。 If you want to get the return value of code in a buffer, this is the wrong way to do it. 如果要在缓冲区中获取代码的返回值，这是错误的方法。 eval-last-sexp , bound to Cx Ce , is one way to do so. eval-last-sexp ，绑定到Cx Ce ，是这样做的一种方法。 Calling it with a prefix, Cu Cx Ce will insert the return value into the current buffer. 使用前缀调用它， Cu Cx Ce会将返回值插入当前缓冲区。
eval-buffer preserves the value of point. eval-buffer保留point的值。 So functions like forward-word will have no visible effect. 因此像forward-word这样的函数没有明显的效果。