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
// ---------------------------------------------------------
// EXERCISE: Observe the capacity growth
//
// Write a program that appends elements to a slice
// 10 million times in a loop. Observe how the capacity of
// the slice changes.
//
//
// STEPS
//
// 1. Create a nil slice
//
// 2. Loop 1e7 times
//
// 3. On each iteration: Append an element to the slice
//
// 4. Print the length and capacity of the slice "only"
// when its capacity changes.
//
// BONUS: Print also the growth rate of the capacity.
//
//
// EXPECTED OUTPUT
//
// len:0 cap:0 growth:NaN
// len:1 cap:1 growth:+Inf
// len:2 cap:2 growth:2.00
// ... and so on.
//
// ---------------------------------------------------------
func main() {}
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