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法律研究如何在 Golang 中求长方体的表面积和体积？
在本教程中，我们将学习 Golang 程序，用于计算长方体的表面积和体积。面积是指任何封闭图形所覆盖的总空间。体积是指容器内部容纳东西的能力。
公式
l - 长方体的长度
h - 长方体的高度
w - 长方体的宽度。
长方体的表面积 - 2*l*w + 2*w*h + 2*l*h
例如，长方体的长度为 10 厘米，高度为 5 厘米，宽度为 8 厘米，则长方体的表面积为 -
l = 10 cm
h = 5 cm
w = 4 cm
面积 = 2*l*w + 2*w*h + 2*l*h
= 2*10*4 + 2*4*5 + 2*5*10
= 80 + 40 + 100
= 220 cm^2
长方体的体积 - l * b * h
例如，长方体的长度为 10 厘米，高度为 5 厘米，宽度为 8 厘米，则长方体的体积为 -
l = 10 cm
h = 5 cm
w = 4 cm
体积 = l * b * h
= 10 * 5 * 4
= 200
算法
步骤 1 - 声明用于长度、宽度、高度、体积和面积的 float64 数据类型变量。
步骤 2 - 初始化变量。
步骤 3 - 使用上述公式在函数中计算表面积和体积。
步骤 4 - 打印结果。
示例
在此示例中，我们将通过函数计算长方体的表面积和体积。
package main
// fmt package provides the function to print anything
import (
"fmt"
)
func main() {
// declaring the floating variables using the var keyword for
// storing the length of the parallel sides of the Cuboid,
// distance between the parallel sides and also a variable area
// to store Area
var l, w, h, surfaceArea, volume float64
fmt.Println("Program to find the Surface Area and volume of a Cuboid.")
// initializing the length of a Cuboid
l = 10
// initializing the width of a Cuboid
w = 8
// initializing the height of a Cuboid
h = 4
// finding the surface Area of a Cuboid
surfaceArea = 2*l*w + 2*w*h + 2*l*h
// finding the volume of a Cuboid
volume = l * w * h
// printing the result
fmt.Println("The Surface Area of a Cuboid whose length , width, and height are", l, ",", w, ",", h, "is", surfaceArea, "cm * cm.")
fmt.Println("The volume of a Cuboid whose length , width, and height are", l, ",", w, ",", h, "is", volume, "cm * cm * cm.")
fmt.Println("(Finding the Surface Area and volume of a Cuboid within the function)")
}
输出
Program to find the Surface Area and volume of a Cuboid. The Surface Area of a Cuboid whose length , width, and height are 10 , 8 , 4 is 304 cm * cm. The volume of a Cuboid whose length , width, and height are 10 , 8 , 4 is 320 cm * cm * cm. (Finding the Surface Area and volume of a Cuboid within the function)
算法
步骤 1 - 声明用于长度、宽度、高度、体积和面积的 float64 数据类型变量。
步骤 2 - 初始化变量。
步骤 3 - 使用长方体的长度、宽度和高度作为参数调用函数，并将函数返回的面积存储起来。
步骤 4 - 使用长方体的长度、宽度和高度作为参数调用函数，并将函数返回的体积存储起来。
步骤 5 - 打印结果。
示例
在此示例中，我们将通过定义单独的函数来计算长方体的面积。
package main
// fmt package provides the function to print anything
import (
"fmt"
)
// in this line we have declared the function that has float64
// type parameter and float64 type returntype
func areaOfCuboid(l, w, h float64) float64 {
// returning the area by applying the formula
return 2*l*w + 2*w*h + 2*l*h
}
// in this line we have declared the function that has float64
// type parameter and float64 type returntype
func volumeOfCuboid(l, w, h float64) float64 {
// returning the volume by applying the formula
return l * w * h
}
func main() {
// declaring the floating variables using the var keyword for
// storing the length of the parallel sides of the Cuboid,
// distance between the parallel sides and also a variable area
// to store Area
var l, w, h, surfaceArea, volume float64
fmt.Println("Program to find the Surface Area and volume of a Cuboid.")
// initializing the length of a Cuboid
l = 10
// initializing the width of a Cuboid
w = 8
// initializing the height of a Cuboid
h = 4
// finding the surface Area of a Cuboid by calling the function
surfaceArea = areaOfCuboid(l, w, h)
// finding the volume of a Cuboid
volume = volumeOfCuboid(l, w, h)
// printing the result
fmt.Println("The Surface Area of a Cuboid whose length , width, and height are", l, ",", w, ",", h, "is", surfaceArea, "cm * cm.")
fmt.Println("The volume of a Cuboid whose length , width, and height are", l, ",", w, ",", h, "is", volume, "cm * cm * cm.")
fmt.Println("(Finding the Surface Area and volume of a Cuboid in the seperate function)")
}
输出
Program to find the Surface Area and volume of a Cuboid. The Surface Area of a Cuboid whose length , width, and height are 10 , 8 , 4 is 304 cm * cm. The volume of a Cuboid whose length , width, and height are 10 , 8 , 4 is 320 cm * cm * cm. (Finding the Surface Area and volume of a Cuboid in the seperate function)
结论
以上是两种在 Golang 中计算长方体面积和体积的方法。从模块化和代码重用性的角度来看，第二种方法更好，因为我们可以在项目的任何地方调用该函数。要了解更多关于 Go 的知识，您可以浏览这些 教程。
更新于: 2022-11-29
133 次浏览
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