2022-08-23：以下go语言代码输出什么？A：map[baz:2 foo:0]；B：map[bar:1 baz:2]；C：map[baz:2]；D：不确定。
package main

import (
"fmt"
)

func main() {
m := map[string]int{"foo": 0, "bar": 1, "baz": 2}
for k := range m {
if k == "foo" {
delete(m, "bar")
}
if k == "bar" {
delete(m, "foo")
}
}
fmt.Println(m)
}