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18.2.md

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18.2 数组和切片

  • 创建:

    arr1 := new([len]type)

    slice1 := make([]type, len)

  • 初始化:

    arr1 := [...]type{i1, i2, i3, i4, i5}

    arrKeyValue := [len]type{i1: val1, i2: val2}

    var slice1 []type = arr1[start:end]

(1)如何截断数组或者切片的最后一个元素:

line = line[:len(line)-1]

(2)如何使用 for 或者 for-range 遍历一个数组(或者切片):

for i:=0; i < len(arr); i++ {
… = arr[i]
}
for ix, value := range arr {
…
}

(3)如何在一个二维数组或者切片 arr2Dim 中查找一个指定值 V

found := false
Found: for row := range arr2Dim {
    for column := range arr2Dim[row] {
        if arr2Dim[row][column] == V{
            found = true
            break Found
        }
    }
}

链接