Question

我正在使用This建议，试图让Emacs为我管理我的软件包。我无法让Emacs评估这段代码，它应该安装我的所有软件包，但目前它绝对没有。我的elisp中是否有一些我没有看到的错误？

;;; Emacs is not a package manager, and here we load its package manager!
(require 'package)
(dolist (source '(("marmalade" . "http://marmalade-repo.org/packages/")
                  ("elpa" . "http://tromey.com/elpa/")
                  ;; TODO: Maybe, use this after emacs24 is released
                  ;; (development versions of packages)
                  ("melpa" . "http://melpa.milkbox.net/packages/")
                  ))
  (add-to-list 'package-archives source t))
(package-initialize)

;;; Required packages
;;; everytime emacs starts, it will automatically check if those packages are
;;; missing, it will install them automatically
(when (not package-archive-contents)
  (package-refresh-contents))
(defvar tmtxt/packages
  '(evil git-gutter monokai-theme magit markdown-mode evil-leader jedi evil-surround arduino-mode evil-nerd-commenter zeal-at-point))

(dolist (p tmtxt/packages)
  (lambda () 
      (when (not (package-installed-p p))
        (package-install p))
      (require p)))

Answer 1

dolist的主体仅仅是“lambda-expression”，即它立即评估为立即丢弃的函数。由于您希望执行函数体，只需删除(lambda () ...)包装器：

(dolist (p tmtxt/packages)
  (when (not (package-installed-p p))
    (package-install p))
  (require p))

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