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完善

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This commit is contained in:
xing 2023-01-31 14:25:25 +08:00
parent ae0a4f0731
commit d9aa8cbd4e
1 changed files with 6 additions and 0 deletions
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6
helper/slice/slice.go
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@ -225,6 +225,12 @@ func Pop[T any](a *[]T) T {
// Rand 随机取一个元素
func Rand[T any](a []T) (int, T) {
var r T
if len(a) < 1 {
return -1, r
} else if len(a) == 1 {
return 0, a[0]
}
i := number.Rand(0, len(a)-1)
return i, a[i]
}