仅从参数数组中调用某些值的和
本文关键字:调用 参数 数组 | 更新日期: 2023-09-27 18:04:01
我正试图找出如何从参数数组中调用10以下所有值的总和。
到目前为止,我已经弄清楚了如何调用一个值的值。我怎样才能/应该得到这个数字,有什么想法吗?static int SumVals(params int[] vals)//parameter array
{
int sum = 0;
foreach (int val in vals) //for each integer value
{
sum += val; //sum equals sum plus val. returns all values added together
}
return sum;
}
static void Main(string[] args)
{
int sum = SumVals(100, 5, 2, 9, 800);
Console.WriteLine("Summed Values = {0}", sum);
Console.ReadKey();
}
在循环中添加if语句,只添加值<10
foreach (int val in vals)
{
if(val < 10)
{
sum += val;
}
}
这就是你想要做的吗?
static int SumVals(params int[] vals)
{
return vals.Where(i => i < 10).Sum();
}
static int SumVals(params int[] vals)//parameter array
{
int sum = 0;
foreach (int val in vals) //for each integer value
{
if(val < 10) //only add to the sum if value is less than 10
sum += val; //sum equals sum plus val. returns all values added together
}
return sum;
}
static void Main(string[] args)
{
int sum = SumVals(100, 5, 2, 9, 800);
Console.WriteLine("Summed Values = {0}", sum);
Console.ReadKey();
}
您可以使用LINQ来完成:
static int SumVals(params int[] vals)//parameter array
{
return vals.Where(v => v < 10).Sum();
}
你必须把using System.Linq;
放在你的文件的顶部,使它工作
foreach (int val in vals) //for each integer value
{
if(val <10)
sum += val; //sum equals sum plus val. returns all values added together
}
static int SumVals(params int[] vals)//parameter array
{
return vals.Where(x => x < 10).Sum();
}
如何:
static int SumVals(params int[] vals)//parameter array
{
int sum = 0;
foreach (int val in vals) //for each integer value
{
if (val >=10) continue;
sum += val; //sum equals sum plus val. returns all values added together
}
return sum;
}