package main
import "fmt"
func main() {
var mp = map[string]int{"go":35,"php":4, "c++":120, "python":8432}
keys_slice := []string{}
for key, _ := range mp {
keys_slice = append(keys_slice, key)
}
fmt.Println(keys_slice)
}
/*
run:
[go php c++ python]
*/