Go 程序：计算数组中的正数和负数

在这个 Go 程序中，我们使用 for 循环来迭代 posNegArr 数组。if 条件 (if posNegArr[i] >= 0) 检查数组元素是否大于或等于零。如果为真，我们增加正数计数器 (positiveCount++)；否则，增加负数计数器 (negativeCount++)。

package main

import "fmt"

func main() {
    var size, i int

    fmt.Print("Enter the Positive Negative Array Size = ")
    fmt.Scan(&size)

    posNegArr := make([]int, size)

    fmt.Print("Enter the Positive Negative Array Items  = ")
    for i = 0; i < size; i++ {
        fmt.Scan(&posNegArr[i])
    }

    positiveCount := 0
    negativeCount := 0

    for i = 0; i < size; i++ {
        if posNegArr[i] >= 0 {
            positiveCount++
        } else {
            negativeCount++
        }
    }
    fmt.Println("The Total Number of Positive Numbers = ", positiveCount)
    fmt.Println("The Total Number of Negative Numbers = ", negativeCount)
}

Enter the Positive Negative Array Size = 5
Enter the Positive Negative Array Items  = 1 -2 -3 0 -5
The Total Number of Positive Numbers =  2
The Total Number of Negative Numbers =  3

Golang 程序：使用 for 循环 range 计算数组中的正数和负数。

package main

import "fmt"

func main() {
    var size, i int

    fmt.Print("Enter the Positive Negative Array Size = ")
    fmt.Scan(&size)

    posNegArr := make([]int, size)

    fmt.Print("Enter the Positive Negative Array Items  = ")
    for i = 0; i < size; i++ {
        fmt.Scan(&posNegArr[i])
    }

    positiveCount := 0
    negativeCount := 0

    for _, pn := range posNegArr {
        if pn >= 0 {
            positiveCount++
        } else {
            negativeCount++
        }
    }
    fmt.Println("The Total Number of Positive Numbers = ", positiveCount)
    fmt.Println("The Total Number of Negative Numbers = ", negativeCount)
}

在这个数组 示例 中，我们创建了两个独立的函数 (func countPositiveNums 和 countNegativeNums)，它们分别返回正数和负数的计数。

package main

import "fmt"

var positiveCount, negativeCount int

func countPositiveNums(posNegArr []int) int {
    positiveCount = 0
    for _, pn := range posNegArr {
        if pn >= 0 {
            positiveCount++
        }
    }
    return positiveCount
}
func countNegativeNums(posNegArr []int) int {
    negativeCount = 0
    for _, pn := range posNegArr {
        if pn < 0 {
            negativeCount++
        }
    }
    return negativeCount
}
func main() {
    var size int

    fmt.Print("Enter the positive negative Array Size = ")
    fmt.Scan(&size)

    posNegArr := make([]int, size)

    fmt.Print("Enter the positive negative Array Items  = ")
    for i := 0; i < size; i++ {
        fmt.Scan(&posNegArr[i])
    }

    positiveCount = countPositiveNums(posNegArr)
    negativeCount = countNegativeNums(posNegArr)
    fmt.Println("The Total Number of positive Numbers = ", positiveCount)
    fmt.Println("The Total Number of negative Numbers = ", negativeCount)
}

Enter the positive negative Array Size = 9
Enter the positive negative Array Items  = -2 -3 0 -9 11 22 33 -88 100
The Total Number of positive Numbers =  5
The Total Number of negative Numbers =  4