vscode tab不能缩进

正在使用的vscode tab忽然不能缩进，可能是因为自己安装了某些插件，导致tab键功能被修改。

在 File-->Preferences-->Key board shortcuts 页面中点击打开keybindings.json文件，注释掉下面关于Tab键的命令

// Place your key bindings in this file to overwrite the defaults
//[
//    {
//        "key": "tab",
//        "command": "-jumpToNextSnippetPlaceholder",
//        "when": "editorTextFocus && hasNextTabstop && inSnippetMode"
//    },
//     {
//         "key": "tab",
//         "command": "-editor.emmet.action.expandAbbreviation",
//         "when": "config.emmet.triggerExpansionOnTab && editorTextFocus && !editorReadonly && !editorTabMovesFocus"
//     },
//     {
//         "key": "tab",
//         "command": "-insertSnippet",
//         "when": "editorTextFocus && hasSnippetCompletions && !editorTabMovesFocus && !inSnippetMode"
//     },
//     {
//         "key": "tab",
//         "command": "-acceptSelectedSuggestion",
//         "when": "suggestWidgetVisible && textInputFocus"
//     },
//     {
//         "key": "tab",
//         "command": "-tab",
//         "when": "editorTextFocus && !editorReadonly && !editorTabMovesFocus"
//     }
// ]

同时在 File-->Preferences-->settings 中取消勾选这一项

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