[英]How do you change a global variable in elisp?
package-archives
(("marmalade" . "http://marmalade-repo.org/packages/") ("gnu" . "http://elpa.gnu.org/packages/") ("melpa" . "http://melpa.milkbox.net/packages/"))
setq package-archives '(("melpa" . "http://melpa.milkbox.net/packages/"))
(("melpa" . "http://melpa.milkbox.net/packages/"))
But then when I evaluate package-archives
again, I get the original value: 但是,当我再次评估
package-archives
时,我得到了原始值:
package-archives
(("marmalade" . "http://marmalade-repo.org/packages/") ("gnu" . "http://elpa.gnu.org/packages/") ("melpa" . "http://melpa.milkbox.net/packages/"))
我只需要添加括号:
(setq package-archives '(("melpa" . "http://melpa.milkbox.net/packages/")))
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