【GoLang】GoLang 遍历 map、slice、array方法

最新推荐文章于 2024-04-23 23:23:25 发布

转载最新推荐文章于 2024-04-23 23:23:25 发布 · 258 阅读

文章标签：

#golang

本文通过具体的Go语言代码示例介绍了如何使用Map进行键值对操作，并展示了如何遍历Map中的元素。同时，文章还讲解了如何操作Slice，包括切片的创建、修改及扩展等基本操作。

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代码示例：

    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] = 444
    slice = append(slice, 888)
    slice = append(slice, 999)
    t.Log(slice)
    t.Log(array)

结果输出：

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