goroutine语句执行和函数执行的不同行为

Question

Can anyone explain the difference between the following two calls regarding the goroutines?

Method 1

fmt.Println("Starting srv")
go LOGGER.Error(srv.ListenAndServe())
fmt.Println("Starting intSrv")
go LOGGER.Error(intSrv.ListenAndServe())

This stopes after executing the "Starting srv"

Method 2

go func() {
    fmt.Println("Starting srv")
    srv.ListenAndServe()
}()

go func() {
    fmt.Println("Starting intSrv")
    intSrv.ListenAndServe()
}()

This executes both "Starting srv" and "Starting intSrv"

Why the behaviour is different?

Answer 1

go LOGGER.Error(srv.ListenAndServe())

The above statement evaluates the arguments to LOGGER.Error() first, then creates a goroutine and runs LOGGER.Error(). However, srv.ListenAndServe never returns.