如何在函数外部声明两个变量

Suppose I want to declare two variables outside of a function in golang, I tried to use the following code

var (
    elastic *Client, err error =                
    elastic.NewClient(elastic.SetURL("http:145.00.000.01:9600"))
)

I got an error saying "unexpected coma, expecting semicolon, new line or ) "

Does anyone know how to fix this?

Try this way

var elastic, err  = elastic.NewClient(elastic.SetURL("http:145.00.000.01:9600"))