Go 程序查找矩阵对角线之和

编写一个 Go 程序来查找矩阵对角线项的总和。在此 Go 示例中，我们使用 for 循环迭代行项，并将矩阵对角线项添加到总和中 (sum = sum + dSumMat[i][I])。

package main

import "fmt"

func main() {
    var i, j, rows, columns int

    var dSumMat [10][10]int

    fmt.Print("Enter the Matrix rows and Columns = ")
    fmt.Scan(&rows, &columns)

    fmt.Println("Enter the Matrix Items to find the Diagonal Sum = ")
    for i = 0; i < rows; i++ {
        for j = 0; j < columns; j++ {
            fmt.Scan(&dSumMat[i][j])
        }
    }
    sum := 0
    for i = 0; i < rows; i++ {
        sum = sum + dSumMat[i][i]
    }
    fmt.Println("The Sum of Matrix Diagonal Elements  = ", sum)
}

Enter the Matrix rows and Columns = 2 2
Enter the Matrix Items to find the Diagonal Sum = 
10 20
30 50
The Sum of Matrix Diagonal Elements  =  60

Golang 程序使用 For 循环范围查找矩阵中对角线元素的总和。

package main

import "fmt"

func main() {

    var dSumMat [3][3]int

    fmt.Println("Enter the Matrix Items to find the Diagonal Sum = ")
    for i, rows := range dSumMat {
        for j := range rows {
            fmt.Scan(&dSumMat[i][j])
        }
    }
    sum := 0
    for k := range dSumMat {
        sum = sum + dSumMat[k][k]
    }
    fmt.Println("The Sum of Matrix Diagonal Elements  = ", sum)
}