go main

2026-08-30 浏览 (1)

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"

func main() {
	// what's the value of the ratio?
	// 3 / 2 = 1.5?
	var ratio float64 = 3 / 2
	fmt.Println(ratio)

	// explain
	// above expression equals to this:
	ratio = float64(int(3) / int(2))
	fmt.Println(ratio)

	// how to fix it?
	//
	// remember, when one of the values is a float value
	// the result becomes a float
	ratio = float64(3) / 2
	fmt.Println(ratio)

	// or
	ratio = 3.0 / 2
	fmt.Println(ratio)
}

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  • 所属分类: 后端技术
  • 本文标签: golang
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