vscode怎么设置tab为补全切换+确认

vscode怎么设置tab为补全切换+确认，就像vim插件youcompleteme那样

1. 文件->首选项->键盘快捷方式
   或者直接Ctrl K Ctrl S
2. 右上角分页图标左侧按钮（三图标左一），点击
3. 将下面的代码直接替换

// 将键绑定放在此文件中以覆盖默认值
[
    {
        "key": "tab",
        "command": "selectNextSuggestion",
        "when": "editorTextFocus && suggestWidgetMultipleSuggestions && suggestWidgetVisible"
    },
    {
        "key": "shift+tab",
        "command": "selectPrevSuggestion",
        "when": "editorTextFocus && suggestWidgetMultipleSuggestions && suggestWidgetVisible"
    }
]