Go 程序打印矩阵下三角

编写一个 Go 程序来打印矩阵的下三角。在此 Go 矩阵下三角示例中，嵌套的 for 循环有助于迭代矩阵的行和列。在循环中，如果条件（if i >= j）检查行值是否大于或等于列值。如果为真，则将该项打印为下三角矩阵项；如果条件为假，则打印零。

package main

import "fmt"

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

    var lowTriangleMat [10][10]int

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

    fmt.Println("Enter Matrix Items to Print Lower Triangle = ")
    for i = 0; i < rows; i++ {
        for j = 0; j < columns; j++ {
            fmt.Scan(&lowTriangleMat[i][j])
        }
    }
    for i = 0; i < rows; i++ {
        fmt.Println()
        for j = 0; j < columns; j++ {
            if i >= j {
                fmt.Print(lowTriangleMat[i][j], " ")
            } else {
                fmt.Print("0 ")
            }
        }
    }
    fmt.Println()
}

Enter the Lower Matrix rows and Columns = 2 2
Enter Matrix Items to Print Lower Triangle = 
1 2
3 4

1 0 
3 4 

使用 For 循环范围打印下三角矩阵的 Golang 程序。

package main

import "fmt"

func main() {

    var lowTriangleMat [3][3]int

    fmt.Println("Enter Matrix Items to Print Lower Triangle = ")
    for i, rows := range lowTriangleMat {
        for j := range rows {
            fmt.Scan(&lowTriangleMat[i][j])
        }
    }
    for i, rows := range lowTriangleMat {
        fmt.Println()
        for j := range rows {
            if j >= i {
                fmt.Print(lowTriangleMat[i][j], " ")
            } else {
                fmt.Print("0 ")
            }
        }
    }
    fmt.Println()
}