问Outlook: Desktop Client中未调用函数文件函数

EN

(function () {
    Office.initialize = function (reason) {
    };
})();

function doIt(event) {
    console.log("Here");
    event.completed();
}

...
<ExtensionPoint xsi:type="AppointmentOrganizerCommandSurface">
<OfficeTab id="appOrgTab">
    <Group id="appOrgCmdGroup">
        <Label resid="groupLabel"/>
        <Control xsi:type="Button" id="appOrgCtrl">
            <Label resid="appOrgLabel"/>
            <Supertip>
                <Title resid="appOrgTitle"/>
                <Description resid="appOrgDesc"/>
            </Supertip>
            <Icon>
                <bt:Image size="16" resid="icon16"/>
                <bt:Image size="32" resid="icon32"/>
                <bt:Image size="80" resid="icon80"/>
            </Icon>
            <Action xsi:type="ExecuteFunction">
                <FunctionName>doIt</FunctionName>
            </Action>
        </Control>
    </Group>
</OfficeTab>
</ExtensionPoint>
<ExtensionPoint xsi:type="Events">
<Event Type="ItemSend" FunctionExecution="synchronous" FunctionName="doIt"/>
</ExtensionPoint>
...