console.writeline在此处到底是什么作用？
static void Main(string[] args)
{
int x = 1;
int sum = 0;
while (x <= 30)
{
if (x % 2 == 1)
Console.WriteLine(x);
sum = sum + x;
x++;
}
Console.WriteLine("1~30的奇数之和为："+sum );
}
Console.WriteLine(x);这一行加上去结果是错误的，如果注释掉结果才正确，这是为什么呢？
2回答
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慕瓜9220888
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陆云帆
没有任何问题你的if作用域有问题，应该这样写：int x = 1;
int sum = 0;
while (x <= 30)
{
if (x % 2 == 1)
{
Console.WriteLine(x);
sum = sum + x;
}
x++;
}
Console.WriteLine("1~30的奇数之和为：" + sum);这个Console.WriteLine(x)只是把中间结果打印了而已，没任何作用。这种程序用C#写当然要体现C#的优势，给你一种简单的解决方案：var sum = (from num in Enumerable.Range(0, 31) where num % 2 == 1 select num).Sum();
Console.WriteLine("1~30的奇数之和为：" + sum);两行搞定。
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qq_no_8
看看格式，对齐，花括号呢