Golang implementation of unit conversion application

Title: Measurement unit conversion application implemented in Golang

In modern society, conversion of measurement units is a common and important operation. Whether in daily life or in the field of engineering, we often need to convert different units of measurement to better understand and apply data. In order to facilitate users to convert measurement units, we can use the Golang language to write a practical application to achieve conversion between different measurement units. In this article, we will introduce how to use Golang to write a simple but powerful measurement unit conversion application, with specific code examples.

First, we need to determine which measurement unit conversions we want to support. In this article, we have chosen to support conversions between length units (meters, kilometers, feet, inches) and weight units (grams, kilograms, pounds, ounces). Next, we need to define a structure to represent different measurement units and write the corresponding conversion methods.

package main

import (
    "fmt"
)

type LengthUnit struct {
    Meter    float64
    Kilometer float64
    Foot     float64
    Inch     float64
}

type WeightUnit struct {
    Gram    float64
    Kilogram float64
    Pound    float64
    Ounce    float64
}

func (l LengthUnit) MeterToKilometer() float64 {
    return l.Meter / 1000
}

func (l LengthUnit) MeterToFoot() float64 {
    return l.Meter * 3.28084
}

func (l LengthUnit) MeterToInch() float64 {
    return l.Meter * 39.3701
}

func (w WeightUnit) GramToKilogram() float64 {
    return w.Gram / 1000
}

func (w WeightUnit) GramToPound() float64 {
    return w.Gram * 0.00220462
}

func (w WeightUnit) GramToOunce() float64 {
    return w.Gram * 0.035274
}

func main() {
    length := LengthUnit{10, 0, 0, 0}
    weight := WeightUnit{1000, 0, 0, 0}

    // 实现长度单位转换
    fmt.Printf("%.2f 米 = %.2f 千米
", length.Meter, length.MeterToKilometer())
    fmt.Printf("%.2f 米 = %.2f 英尺
", length.Meter, length.MeterToFoot())
    fmt.Printf("%.2f 米 = %.2f 英寸
", length.Meter, length.MeterToInch())

    // 实现重量单位转换
    fmt.Printf("%.2f 克 = %.2f 千克
", weight.Gram, weight.GramToKilogram())
    fmt.Printf("%.2f 克 = %.2f 磅
", weight.Gram, weight.GramToPound())
    fmt.Printf("%.2f 克 = %.2f 盎司
", weight.Gram, weight.GramToOunce())
}

The above code defines two structures, LengthUnit and WeightUnit, which represent length units and weight units respectively, and implement methods of mutual conversion. In the main function, we create an example with a length of 10 meters and a weight of 1000 grams and convert it to a different unit of measurement by calling the corresponding conversion method. By running the program, we can see the converted results output on the console.

Through the above examples, we can see that using Golang to write measurement unit conversion applications is very simple and intuitive. By defining structures and conversion methods, we can easily convert between various measurement units and provide users with convenient services. I hope this article will help you understand the application and measurement unit conversion of Golang.

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