Golang 如何找到长方体的表面积和体积

在本教程中，我们将看到用Golang程序来求一个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。体积是指容器内容纳东西的能力。

如何在Golang中找到长方体的表面积和体积？

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，长方体的长度是10厘米，高度是5厘米，宽度是8厘米，所以长方体的表面积是-

l = 10厘米

h = 5 cm

w=4厘米

面积=2lw+2wh+2lh

= 2104 + 245 + 2510

= 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，那么长方体的体积为-

l = 10厘米

h = 5 cm

w=4厘米

体积 = l * b * h

= 10 * 5 * 4

= 200

算法

第1步 --声明长度、宽度、高度、体积和float64数据类型的变量。

第2步 --初始化变量。

第3步 – 在函数中使用上述公式求出表面积和体积。

第4步 – 打印结果。

例子

在这个例子中，我们将在函数中找出一个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

第1步 - 声明长度、宽度、高度、体积和浮动64数据类型的变量。

第2步 --初始化变量。

第3步 – 以立方体的长度、宽度和高度为参数调用函数，并存储函数返回的面积。

第4步 – 以长方体的长、宽、高和the为参数调用函数，并存储函数返回的体积。

第5步 - 打印结果。

例子

在这个例子中，我们将通过定义单独的函数来求一个立方体的面积。

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)