alt+i 上
alt+k 下
alt+j 左
alt+l 右
alt+u 行首
alt+o 行末
// Place your key bindings in this file to override the defaultsauto[]

[
    {
      "key": "alt+i",
      "command": "cursorUp",
      "when": "textInputFocus"
    },
    {
      "key": "up",
      "command": "cursorUp",
      "when": "textInputFocus"
    },
    {
      "key": "alt+i",
      "command": "selectPrevSuggestion",
      "when": "suggestWidgetMultipleSuggestions && suggestWidgetVisible && textInputFocus"
    },
    {
      "key": "up",
      "command": "selectPrevSuggestion",
      "when": "suggestWidgetMultipleSuggestions && suggestWidgetVisible && textInputFocus"
    },

    {
      "key": "alt+k",
      "command": "cursorDown",
      "when": "textInputFocus"
    },
    {
      "key": "down",
      "command": "cursorDown",
      "when": "textInputFocus"
    },
    {
      "key": "alt+k",
      "command": "selectNextSuggestion",
      "when": "suggestWidgetMultipleSuggestions && suggestWidgetVisible && textInputFocus"
    },
    {
      "key": "down",
      "command": "-selectNextSuggestion",
      "when": "suggestWidgetMultipleSuggestions && suggestWidgetVisible && textInputFocus"
    },

    {
      "key": "alt+l",
      "command": "cursorRight",
      "when": "textInputFocus"
    },
    {
      "key": "right",
      "command": "cursorRight",
      "when": "textInputFocus"
    },

    {
      "key": "alt+j",
      "command": "cursorLeft",
      "when": "textInputFocus"
    },
    {
      "key": "left",
      "command": "cursorLeft",
      "when": "textInputFocus"
    },

    {
      "key": "alt+o",
      "command": "cursorEnd",
      "when": "textInputFocus"
    },
    {
      "key": "end",
      "command": "cursorEnd",
      "when": "textInputFocus"
    },

    {
      "key": "alt+u",
      "command": "cursorHome",
      "when": "textInputFocus"
    },
    {
      "key": "home",
      "command": "cursorHome",
      "when": "textInputFocus"
    }

]
  
  

文件》》》首选项》》》键盘快捷方式》》》 打开键盘快捷方式json（右上角文件图标）；

然后将上面的配置代码复制进去，ok