1: 先打开Sublime text -> Preferences -> Key bindings

 

2:添加以下代码

[  { "keys": ["tab"], "command": "expand_abbreviation_by_tab", "context":    [        { "operand": "source.js", "operator": "equal", "match_all": true, "key": "selector" },        { "match_all": true, "key": "selection_empty" },        { "operator": "equal", "operand": false, "match_all": true, "key": "has_next_field" },        { "operand": false, "operator": "equal", "match_all": true, "key": "auto_complete_visible" },        { "match_all": true, "key": "is_abbreviation" }    ]}]

如图