Golang 如何查找平行四边形的面积

在本教程中，我们将看到Golang程序来寻找平行四边形的面积。面积是指任何封闭图形所覆盖的总空间。

如何用Golang查找平行四边形的面积？

公式

Area of the Parallelogram - base * height
b - length of the base of a Parallelogram
h - length of the height of a Parallelogram

For example, the length of the base of a Parallelogram is 6 cm and the length of the height of the parallelogram is 4 cm so the Area of a Parallelogram is −

b = 6 cm
h = 4 cm
Area = base * height
   = 6 * 4
   = 24 cm^2

在函数中寻找平行四边形的面积

算法

第1步 --声明底长、高长和float64数据类型的面积的变量。

第2步 --初始化变量。

第3步 – 使用函数中的上述公式求面积。

第4步 – 打印结果。

Time Complexity:
O(1)

Space Complexity:
O(1)

例1

在这个例子中，我们要在函数中找出平行四边形的面积。

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 base of the Parallelogram,
   // length of the height of the Parallelogram and also
   // a variable area to store Area
   var base, height, Area float64
   fmt.Println("Program to find the Area of a Parallelogram.")

   // initializing the length of the base of a Parallelogram
   base = 6

   // initializing the length of the height of a Parallelogram
   height = 4

   // finding the Area of a Parallelogram
   Area = height * base

   // printing the result
   fmt.Println("The Area of a Parallelogram with base =", base,"and height =", height, "is", Area, "cm * cm.")
   fmt.Println("(Finding the Area of a Parallelogram within the function)")
}

输出

Program to find the Area of a Parallelogram.
The Area of a Parallelogram with base = 6 and height = 4 is 24 cm * cm.
(Finding the Area of a Parallelogram within the function)

寻找平行四边形的面积的独立函数

算法

第1步 - 声明底长、高长和float64数据类型的面积的变量。

第2步 --初始化变量。

第3步 – 用平行四边形的底长和高长调用函数，并存储函数返回的面积。

第4步 - 打印结果。

例2

在这个例子中，我们将通过定义单独的函数来求平行四边形的面积。

package main
// fmt package provides the function to print anything
import (
   "fmt"
)
// in this line we have declared the function that have float64
// type parameter and float64 type returntype
func areaOfParallelogram(base, height float64) float64 {
   // returning the area by applying the formula
   return base * height
}
func main() {
   // declaring the floating variables using the var keyword for
   // storing the length of the base of the Parallelogram,
   // length of the height of the Parallelogram and also
   // a variable area to store Area
   var base, height, Area float64
   fmt.Println("Program to find the Area of a Parallelogram.")

   // initializing the length of the base of a Parallelogram
   base = 6

   // initializing the length of the height of a Parallelogram
   height = 4

   // finding the Area of a Parallelogram by calling the
   // function with the respective parameters
   Area = areaOfParallelogram(base, height)

   // printing the result
   fmt.Println("The Area of a Parallelogram with base =", base,"and height =", height, "is", Area, "cm * cm.")
   fmt.Println("(Finding the Area of a Parallelogram in the separate function)")
}

输出

Program to find the Area of a Parallelogram.
The Area of a Parallelogram with base = 6 and height = 4 is 24 cm * cm.
(Finding the Area of a Parallelogram in the separate function)