map [string] interface {}和interface {}之间的区别

I want to parse a JSON file to a map[string]interface{}:

var migrations map[string]interface{}
json.Unmarshal(raw, &migrations)

fmt.Println(migrations["create_user"])

But I modified my code to point data to interface{}:

var migrations interface{}
json.Unmarshal(raw, &migrations)

// compile wrong here
fmt.Println(migrations["create_user"])

I don't understand much about difference between map[string]interface{} and interface{} in above case.

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doudi1449
doudi1449
2018/02/26 12:44
  • interface
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