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法學如何在Go語言中求梯形的面積？
在本教程中，我們將學習Go語言程式如何計算梯形的面積。面積是任何封閉圖形所覆蓋的總空間。
公式
Area of Trapezium - ½ * (b1 + b2) * h b1 - length of one parallel side of a Trapezium b2 - length of another parallel side of a Trapezium h - the distance between the parallel sides of a Trapezium.
例如，梯形的一條平行邊的長度為10釐米，另一條平行邊的長度為8釐米，它們之間的距離為4釐米，則梯形的面積為：
b1 = 10 cm b2 = 8 cm h = 4 cm Area = ½ * (a + b) * h = ½ *( 10 + 8) * 4 = ½ * 18 * 4 = 9 * 4 = 32 cm^2
在函式中計算梯形的面積
演算法
步驟1 - 宣告用於儲存平行邊長度、平行邊之間距離和麵積的float64型別變數。
步驟2 - 初始化變數。
步驟3 - 使用上述公式在函式中計算面積。
步驟4 - 列印結果。
Time Complexity: O(1) Space Complexity: O(1)
示例1
在這個例子中，我們將學習如何在函式中計算梯形的面積。
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 Trapezium, // distance between the parallel sides and also a variable area // to store Area var a, b, d, Area float64 fmt.Println("Program to find the Area of a Trapezium.") // initializing the length of one of the parallel side of a Trapezium a = 10 // initializing the length of another parallel side of a Trapezium b = 8 // initializing the length of distance between parallel sides of a Trapezium d = 4 // finding the Area of a Trapezium Area = (1.0 / 2) * ((a + b) * d) // printing the result fmt.Println("The Area of a Trapezium whose length of the parallel sides and distance between the sides are", a,",", b,",", d, "is", Area, "cm * cm.") fmt.Println("(Finding the Area of a Trapezium within the function)") }
輸出
% go run tutorialpoint.go Program to find the Area of a Trapezium. The Area of a Trapezium whose length of the parallel sides and distance between the sides are 10 8 4 is 36 cm * cm. (Finding the Area of a Trapezium within the function)
在單獨的函式中計算梯形的面積
演算法
步驟1 - 宣告用於儲存平行邊長度、平行邊之間距離和麵積的float64型別變數。
步驟2 - 初始化變數。
步驟3 - 呼叫函式，將梯形的平行邊長度和距離作為引數傳入，並將函式返回的面積儲存起來。
步驟4 - 列印結果。
示例2
在這個例子中，我們將透過定義一個單獨的函式來計算梯形的面積。
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 areaOfTrapezium(a, b, d float64) float64 { // returning the area by applying the formula return (1.0 / 2) * ((a + b) * d) } func main() { // declaring the floating variables using the var keyword for // storing the length of the parallel sides of the Trapezium, // distance between the parallel sides and also a variable area // to store Area var a, b, d, Area float64 fmt.Println("Program to find the Area of a Trapezium.") // initializing the length of one of the parallel side of a Trapezium a = 10 // initializing the length of another parallel side of a Trapezium b = 8 // initializing the length of distance between parallel sides of a Trapezium d = 4 // finding the Area of a Trapezium by calling the function with the respective parameter Area = areaOfTrapezium(a, b, d) // printing the result fmt.Println("The Area of a Trapezium whose length of the parallel sides and distance between the sides are", a,",", b,",", d, "is", Area, "cm * cm.") fmt.Println("(Finding the Area of a Trapezium in the separate function)") }
輸出
Program to find the Area of a Trapezium. The Area of a Trapezium whose length of the parallel sides and distance between the sides are 10 , 8 , 4 is 36 cm * cm. (Finding the Area of a Trapezium in the separate function)
結論
以上是兩種在Go語言中計算梯形面積的方法。第二種方法在模組化和程式碼可重用性方面更好，因為我們可以在專案的任何地方呼叫該函式。要了解更多關於Go語言的知識，您可以瀏覽這些教程。
更新於：2022年9月2日
149 次瀏覽
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