var r *reward
var rs []*reward // [] 0 0
rs = append(rs, nil...) // [] 0 0
rs = append(rs, nil) // [<nil>] 1 1
rs = append(rs, r) // [<nil> <nil>] 2 2
rs = append(rs, []*reward{nil}...) // [<nil> <nil> <nil>] 3 4
rs = append(rs, []*reward{nil}[:]...) // [<nil> <nil> <nil> <nil>] 4 4
rs = append(rs, []*reward{r}...) // [<nil> <nil> <nil> <nil> <nil>] 5 8
rs = append(rs, []*reward{}...) // [<nil> <nil> <nil> <nil> <nil>] 5 8
rs = append(rs, &reward{}) // [<nil> <nil> <nil> <nil> <nil> 0x5a0020] 6 8
rs = append(rs, (*reward)(nil)) // [<nil> <nil> <nil> <nil> <nil> 0x5a0020 <nil>] 7 8
rs = append(rs, ([]*reward)(nil)...) // [<nil> <nil> <nil> <nil> <nil> 0x5a0020 <nil>] 7 8
rs = append(rs, ([]*reward)(nil)[:]...) // [<nil> <nil> <nil> <nil> <nil> 0x5a0020 <nil>] 7 8
hmoban主题是根据ripro二开的主题，极致后台体验，无插件，集成会员系统
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golang slice append 总结
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