1.代码提示快捷键设置：（keybindings.json）
{ "key": "ctrl+j","command": "editor.action.triggerSuggest","when": "editorHasCompletionItemProvider && editorTextFocus && !editorReadonly" }
2.插入代码段和字体设置：（setting.json）
{
"editor.fontFamily": "宋体",
"editor.fontSize": 16,
"editor.snippetSuggestions": "top"
}