C# 编一个程序，用while循环语句

static void Main(string[] args)
{
double positive = 0;
double negative = 0;
double min = double.MaxValue;
double max = double.MinValue;
int i = 0;
while (i < 5)
{
string value = Console.ReadLine();
double tmp = 0;
if (!double.TryParse(value, out tmp))
{
Console.WriteLine("输入的不是数字!");
}
else
{
if (tmp >= 0)
{
positive += tmp;
}
else
{
negative += tmp;
}
if (tmp > max)
max = tmp;
if (tmp < min)
min = tmp;
i++;
}
}
Console.WriteLine("Sum of all positive number:{0}", positive);
Console.WriteLine("Sum of all negative number:{0}", negative);
Console.WriteLine("Max value is {0}", max);
Console.WriteLine("Min value is {0}", min);
Console.ReadKey();
}

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