006.golang 数组 array

package main

import (
    "fmt"
)

func main() {
    var a [2]int
    b := [2]int{2, 3}
    fmt.Println(b)
    //数组间赋值，必须数组长度得相等
    b = a
    fmt.Println(b)
}

package main

import (
    "fmt"
)

func main() {
    var a [2]int
    b := [3]int{2, 3, 4}
    fmt.Println(b)
    b = a
    fmt.Println(b)
}

package main

import (
    "fmt"
)

func main() {
    //非初始化参数数值为0
    b := [10]int{2}
    fmt.Println(b)
    //index:value 来初始化特定索引的值
    a := [10]int{8: 3}
    fmt.Println(a)
    //未指派数组长度时，初始化的最大索引默认为数组最大索引
    c := [...]int{9: 1}
    fmt.Println(c)
}

package main

import (
    "fmt"
)

func main() {
    c := [...]int{9: 1}
    var p *[10]int = &c //指向数组的指针
    fmt.Println(p)

    x, y := 1, 3
    a := [...]*int{&x, &y} //指针数组
    fmt.Println(a)
}

package main

import (
    "fmt"
)

func main() {
    a := [2]int{1, 1}
    b := [2]int{1, 1}
    fmt.Println(a == b) //true
    c := [2]int{1, 2}
    fmt.Println(a == c) //false
    // d := [3]int{1, 2, 3}
    // fmt.Println(a == d)
    //数组的类型和长度不一样，无法进行比较
}

package main

import (
    "fmt"
)

func main() {
    a := [10]int{}
    a[1] = 2
    fmt.Println(a)

    //指向数组的指针，同样可以使用下标进行赋值
    p := new([10]int)
    p[1] = 2
    fmt.Println(p)
}

package main

import (
    "fmt"
)

func main() {
    a := [2][3]int{
        {1, 1, 1},
        {2, 2, 2}}
    fmt.Println(a)
}

package main

import (
    "fmt"
)

func main() {
    a := [...]int{3, 4, 5, 7, 12, 6, 9, 32, 0}
    fmt.Println(a)

    num := len(a)
    for i := 0; i < num; i++ {
        for k := i + 1; k < num; k++ {
            if a[i] > a[k] {
                temp := a[i]
                a[i] = a[k]
                a[k] = temp
            }
        }
    }

    fmt.Println(a)
}