如何通过Go中的地图指针更改/访问地图实例的值？

Assume we have code:

var Cache_map *map[string]int

Cache_map = new(map[string]int)

Then we want to add key: type & value 1 into Cache_map, how shall we do?

If you really, really need to do that, for example,

package main

import "fmt"

func main() {
    var Cache_map *map[string]int
    Cache_map = new(map[string]int)
    *Cache_map = make(map[string]int)
    (*Cache_map)["type"] = 1
    fmt.Println(*Cache_map)
}

Output:

map[type:1]

No need for new, make or a pointer to map in this case. Skeleton/example:

package main

import "fmt"

var CacheMap = map[string]int{}

func main() {
        CacheMap["type"] = 1
        fmt.Printf("%#v
", CacheMap)
}

Playground

Output:

map[string]int{"type":1}