我想在 Go 中定義一個二維數(shù)組或切片，并使用枚舉值來訪問數(shù)組中的數(shù)據(jù)。以下將不會編譯，我希望你能幫助我弄清楚如何讓它工作。type ( Color int Fruit int MyType [][]string)const ( Red Color = 1 Blue Color = 2 Apple Fruit = 1 BlueBerry Fruit = 2)func DoIt() { produce := make([][]MyType, 0) // COMPILE ERROR: "Yummy Apple"' (type string) cannot be represented by the type MyType produce[Red][Apple] = "Yummy Apple"}
2 回答
aluckdog
TA貢獻1847條經(jīng)驗 獲得超7個贊
是的，可以使用枚舉索引聲明一個數(shù)組數(shù)組。
package main
import "fmt"
type (
Color int
Fruit int
)
const (
Red Color = 1
Blue Color = 2
NumColor = 3
Apple Fruit = 1
BlueBerry Fruit = 2
NumFruit = 3
)
func main() {
var produce [NumFruit][NumColor]string
produce[Red][Apple] = "Yummy Apple"
fmt.Printf("%#v\n", produce)
}
https://go.dev/play/p/AxwcxLE3iJX
紅糖糍粑
TA貢獻1815條經(jīng)驗 獲得超6個贊
從聲明中刪除 MyType。然后它會起作用。
type (
Color int
Fruit int
)
const (
Red Color = 1
Blue Color = 2
Apple Fruit = 1
BlueBerry Fruit = 2
)
func DoIt() {
produce := make([][]string, 0)
produce[Red][Apple] = "Yummy Apple"
}
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