代碼示例：

map1 := make(map[string]string)map1["a"] = "AAA"map1["b"] = "BBB"map1["c"] = "CCC"for k, v := range map1 {t.Log(k, v)}for _, v := range map1 {t.Log(v)}array := [...]int64{1, 2, 3, 4}for k, v := range array {t.Log(k, v)}for _, v := range array {t.Log(v)}slice := array[:3:3]for k, v := range slice {t.Log(k, v)}t.Log(cap(slice))slice[0] = 444slice = append(slice, 888)slice = append(slice, 999)t.Log(slice)t.Log(array)

結果輸出：

app_for_test.go:50: a AAAapp_for_test.go:50: b BBBapp_for_test.go:50: c CCCapp_for_test.go:53: AAAapp_for_test.go:53: BBBapp_for_test.go:53: CCCapp_for_test.go:58: 0 1app_for_test.go:58: 1 2app_for_test.go:58: 2 3app_for_test.go:58: 3 4app_for_test.go:61: 1app_for_test.go:61: 2app_for_test.go:61: 3app_for_test.go:61: 4app_for_test.go:66: 0 1app_for_test.go:66: 1 2app_for_test.go:66: 2 3app_for_test.go:68: 3app_for_test.go:72: [444 2 3 888 999]app_for_test.go:73: [444 2 3 4]

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參考資料：

https://github.com/astaxie/build-web-application-with-golang/blob/master/zh/02.3.md#goto

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