在一次操作中使用键值对声明映射

Question

Is it possible to declare a map with key value pairs?

Something like this

var env map[string]int{
    "key0": 10,
    "key1": 398
}

Answer 1

Yes, you can declare a map with name value pairs. You can use a variable declaration with a map composite literal:

var env = map[string]int{
   "key0": 10,
   "key1": 398,
}

or a short variable declaration with the composite literal:

env := map[string]int{
   "key0": 10,
   "key1": 398,
}

The short variable declaration can only be used in a function. The variable declaration can be used in functions and at package level.

Also note the added "," following the 398.