Vue Project introduced third-party JS plugin, a single JS file introduced successfully, using the plugin method times wrong

1, the introduction of third-party JS files, NPM can not install

2, console display to introduce success

3, use under the methods

Please look at the following code to see the picture

UpdateTime () {setinterval ()={          varcd =NewDate (); var lunar = Calendarnu.solar2lunar (); //Here is a reference to the plug-in method  This. Time = This. $options. Methods.zeropadding (Cd.gethours (),2) +':'+ This. $options. Methods.zeropadding (Cd.getminutes (),2) +':'+ This. $options. Methods.zeropadding (Cd.getseconds (),2);  This. Calendar = This. $options. Methods.zeropadding (Cd.getfullyear (),4) +'-'+ This. $options. Methods.zeropadding (Cd.getmonth () +1,2) +'-'+ This. $options. Methods.zeropadding (Cd.getdate (),2) +' '+ This. Week[cd.getday ()]; }, +)                },

4, console display using the Plugin method error

How can I use the method introduced in the single JS?

I'm going to have to turn into a yellow fork in my black long, thank you guys first.

Vue Project introduced third-party JS plugin, a single JS file introduced successfully, using the plugin method times wrong