为什么分解式导入语句更好？

Question

The official tour of Go, after exhibiting a factored import like this...

import (
    "fmt"
    "math"
)

... contains the following slightly unclear remark:

You can also write multiple import statements, like:

import "fmt"
import "math"

But it is good style to use the factored import statement.

Is there actually any concrete advantage to using one approach over the other - such as a difference in behaviour or an easy-to-make typo that is only a danger with one of the two syntaxes - or is this just an arbitrary style convention?

Answer 1

There is no difference except for the amount of typing you have to do. A good sized program or package can easily have a dozen or more imported packages so why keep typing the same word (import) time and again when you can achieve the same with a pair of ().

Though most people probably use GoImports nowadays anyway.