1.菜單欄中點擊Preferences（首選項）->Setting-User
2. 添加如下三行代碼:
// The number of spaces a tab is considered equal to
"tab_size": 2,
// Set true to insert spaces when tab is pressed
"translate_tabs_to_spaces": true,
//設置保存時自動轉換
"expand_tabs_on_save": true
3. 如下圖，保存退出即可:
