2022-08-31:以下go语言代码输出什么?A:江苏;B:v["province"]取值错误;C:m.Store存储错误;D:不知道。package mainimport ( "fmt" "sync")func main() { var m sync.Map m.Store("address", map[string]string{"province": "江苏", "city": "南京"}) v, _ := m.Load("address") fmt.Println(v["province"])}