127 lines
2.1 KiB
Go
127 lines
2.1 KiB
Go
// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"fmt"
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)
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func main() {
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// for keeping things easy to read and type-safe
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type placeholder [5]string
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zero := placeholder{
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"███",
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"█ █",
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"█ █",
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"█ █",
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"███",
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}
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one := placeholder{
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"██ ",
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" █ ",
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" █ ",
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" █ ",
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"███",
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}
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two := placeholder{
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"███",
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" █",
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"███",
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"█ ",
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"███",
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}
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three := placeholder{
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"███",
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" █",
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"███",
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" █",
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"███",
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}
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four := placeholder{
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"█ █",
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"█ █",
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"███",
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" █",
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" █",
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}
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five := placeholder{
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"███",
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"█ ",
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"███",
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" █",
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"███",
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}
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six := placeholder{
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"███",
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"█ ",
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"███",
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"█ █",
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"███",
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}
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seven := placeholder{
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"███",
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" █",
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" █",
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" █",
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" █",
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}
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eight := placeholder{
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"███",
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"█ █",
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"███",
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"█ █",
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"███",
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}
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nine := placeholder{
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"███",
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"█ █",
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"███",
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" █",
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"███",
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}
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// This array's type is "like": [10][5]string
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//
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// However:
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// + "placeholder" is not equal to [5]string in type-wise.
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// + Because: "placeholder" is a defined type, which is different
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// from [5]string type.
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// + [5]string is an unnamed type.
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// + placeholder is a named type.
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// + The underlying type of [5]string and placeholder is the same:
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// [5]string
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digits := [...]placeholder{
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zero, one, two, three, four, five, six, seven, eight, nine,
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}
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// Explanation: digits[0]
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// + Each element of clock has the same length.
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// + So: Getting the length of only one element is OK.
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// + This could be: "zero" or "one" and so on... Instead of: digits[0]
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//
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// The range clause below is ~equal to the following code:
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// line := 0; line < 5; line++
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for line := range digits[0] {
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// Print a line for each placeholder in digits
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for digit := range digits {
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fmt.Print(digits[digit][line], " ")
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}
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fmt.Println()
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}
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}
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