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 (
s "github.com/inancgumus/prettyslice"
)
func main() {
// #1: arrays and non-empty slice literals create an array.
// For the arrays, it's explicit, but for the slices,
// it's done implicitly, behind the scenes.
grades := [...]float64{40, 10, 20, 50, 60, 70} // #1
// grades := []float64{40, 10, 20, 50, 60, 70} // #4
// #5: let's break the connection
// #6: comment-out
// var newGrades []float64
// newGrades = append(newGrades, grades...)
// #6: shortcut: []float64(nil) is a nil float64 slice
// newGrades := append([]float64(nil), grades...)
// #2: cheap: slicing doesn't allocate new memory (array).
// front := grades[:3]
// front := newGrades[:3] // #5
// #3: sort its first segment
// sort.Float64s(front)
// #7: new slices look at the same backing array
// front, front2, front3, newGrades, they all have the same backing array
// front2 := front[:3]
// front3 := front
s.PrintBacking = true // #1
s.MaxPerLine = 7 // #1
s.Show("grades", grades[:]) // #1
// s.Show("newGrades", newGrades) // #5
// s.Show("front", front) // #2
// s.Show("front2", front2) // #7
// s.Show("front3", front3) // #7
}
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