也许我误会了这个问题，但这个工作吗？

  m：= make（map [interface {}] interface {}）
m [foo] =bar

 m2：= make（map [string] string）

为键值：=范围m {
 SW it键：= key。（type）{
 case string：
 switch value：= value。（type）{
 case string：
 m2 [key] = value 
} 
} 
} 
 

From a source I cannot influence I am given data in a map, which arrives as map[interface {}]interface {}.

I need to process the contained data, preferably as map[string]string (the data within is perfectly suitable for that).

I need to generate a list of the keys from the data as well, as those are not known beforehand.

Most similar questions I could find on the web say more or less, that this is impossible, but if my map is m, fmt.Println(m) shows the data is there, readable as map[k0:v0 K1:v1 k2:v2 ... ].

How can I do what fmt.Println is able to do?

Perhaps I misunderstand the question, but would this work?

m := make(map[interface{}]interface{})
m["foo"] = "bar"

m2 := make(map[string]string)   

for key, value := range m {        
    switch key := key.(type) {
    case string:
        switch value := value.(type) {
        case string:
            m2[key] = value
        }
    }
}