using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace out参数的使用
{
class Program
{
static void Main(string[] args)
{
int[] numbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
//写一个方法,求一个数组的最大值、最小值、总和和平均值
//int[] res = GetMaxMinSumAvg(numbers);
//Console.WriteLine("最大值是{0},最小值是{1},总和是{2},平均值是{3}",res[0],res[1],
// res[2],res[3]);
int max = 0;
int min = 0;
int sum = 0;
int avg = 0;
GetMaxMinSumAvg(numbers, out max, out min, out sum, out avg);
Console.WriteLine("最大值是{0},最小值是{1},总和是{2},平均值是{3}",
max, min,sum, avg);
}
/// <summary>
/// 一个方法,求一个数组的最大值、最小值、总和和平均值
/// </summary>
/// <param name="nums">要求的数组</param>
/// <param name="max">要返回的最大值</param>
/// <param name="min">要返回的最小值</param>
/// <param name="sum">要返回的总和</param>
/// <param name="avg">要返回的平均值</param>
public static void GetMaxMinSumAvg(int[] nums,out int max,out int min,out int sum,out int avg)
{
max = nums[0];
min = nums[1];
sum = 0;
for (int i = 0; i < nums.Length; i++)
{
if (nums[i] > max)
{
max = nums[i];
}
if (nums[i] < min)
{
min = nums[i];
}
sum += nums[i];
}
avg = sum / nums.Length;
}
/// <summary>
/// 一个方法,求一个数组的最大值、最小值、总和和平均值
/// </summary>
/// <param name="nums">待求的数组</param>
/// <returns>四个结果所在的数组</returns>
public static int[] GetMaxMinSumAvg(int[] nums)
{
int[] res = new int[4];
//假设res[0]--最大值 res[1]--最小值 res[2]--总和 res[3]--平均值
res[0] = nums[0];
res[1] = nums[1];
res[2] = 0;
for(int i=0;i<nums.Length;i++)
{
if(nums[i]>res[0])
{
res[0] = nums[i];
}
if(nums[i]<res[1])
{
res[1] = nums[i];
}
res[2] += nums[i];
}
res[3] = res[2] / nums.Length;
return res;
}
}
}