main.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import (
"fmt"
s "github.com/inancgumus/prettyslice"
)
func main() {
// think of this as search results of a search engine.
// it could have been fetched from a database
items := []string{
"pacman", "mario", "tetris", "doom",
"galaga", "frogger", "asteroids", "simcity",
"metroid", "defender", "rayman", "tempest",
"ultima",
}
// s.Show("0:4", items[0:4])
// s.Show("4:8", items[4:8])
// s.Show("8:12", items[8:12])
// s.Show("12:13", items[12:13])
// s.Show("12:14", items[12:14]) // error
l := len(items)
const pageSize = 4
for from := 0; from < l; from += pageSize {
to := from + pageSize
if to > l {
to = l
}
// fmt.Printf("%d:%d\n", from, to)
currentPage := items[from:to]
head := fmt.Sprintf("Page #%d", (from/pageSize)+1)
s.Show(head, currentPage)
}
}
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