我最近在一台新计算机上设置了我的开发环境，我有一个非常奇怪的问题，按下向上箭头有时会将我的光标向上移动两个空格而不是一个空格。我还没有能够发现它何时发生的模式，而且非常令人沮丧。有没有人经历过类似的事？这是我的.emacs，如果它有帮助：
(add-to-list 'load-path "~/.emacs.d/el-get/el-get")
(unless (require 'el-get nil t)
(url-retrieve
"https://raw.github.com/dimitri/el-get/master/el-get-install.el"
(lambda (s)
(end-of-buffer)
(eval-print-last-sexp))))
(delete-trailing-whitespace)
(add-to-list 'load-path "~/.emacs.d/vendor/")
(add-to-list 'load-path "~/.emacs.d/vendor/js2-mode")
(add-to-list 'load-path "~/.emacs.d/vendor/pig-mode")
(add-to-list 'load-path "~/.emacs.d/vendor/fill-column-indicator")
(autoload 'js2-mode "js2-mode" nil t)
(add-to-list 'auto-mode-alist '("\\.js$" . js2-mode))
(add-to-list 'auto-mode-alist '("\\.pig$" . pig-mode))
(require 'whitespace)
(require 'pig-mode)
(require 'fill-column-indicator)
`(require 'color-theme-zenburn)`
`(color-theme-zenburn)`
(setq scroll-step 1
scroll-conservatively 10000)
(setq column-number-mode t)
(add-to-list 'el-get-recipe-path "~/.emacs.d/el-get-user/recipes")
(el-get 'sync)
(setq package-archives '(("gnu" . "http://elpa.gnu.org/packages/")
("marmalade" . "http://marmalade-repo.org/packages/")
("melpa" . "http://melpa.milkbox.net/packages/")))
(setq-default fill-column 80)
(add-hook 'after-change-major-mode-hook 'fci-mode)
;;Whitespace stuff
; make carriage returns blue and tabs green
(custom-set-faces
'(my-carriage-return-face ((((class color)) (:background "blue"))) t)
'(my-tab-face ((((class color)) (:background "green"))) t)
)
; add custom font locks to all buffers and all files
(add-hook
'font-lock-mode-hook
(function
(lambda ()
(setq
font-lock-keywords
(append
font-lock-keywords
'(
("\r" (0 'my-carriage-return-face t))
("\t" (0 'my-tab-face t))
))))))
; transform literal tabs into a right-pointing triangle
(setq
whitespace-display-mappings ;http://ergoemacs.org/emacs/whitespace-mode.html
'(
(tab-mark 9 [9654 9] [92 9])
;others substitutions...
))