结构体
一次性声明多个不同类型的变量
数组
一次性声明多个相同类型的变量
数组
数组声明
第一种:int[] numbers =new int[10];
int[] nums = new int[10];//长度为10 ,10个元素,下标是0到9
nums[8] = 90;//下标8存90
第二种:int[] numbers =new int[] {1,2,3,4};
int[] numbers = new int[] { 1, 2, 4, 98, 5, 987, 4, 32, 21 };
int temp = 0;
for (int i = 0; i < numbers.Length; i++)
{
if (numbers[i] > temp)
{
temp = numbers[i];
}
}
Console.WriteLine("最大值为{0}", temp);
Console.ReadKey();
第三种:int[] numbers =new int[3] {1,2,3};
第四种:int[] numbers ={1,2,3};
string[] text = {"我","是","好人"};
for (int i = text.Length-1; i >= 0; i--)
{
Console.Write(text[i] + "\t");
}
【小栗子】
foreach循环
static void Main(string[] args)
{
string[] friendNames={"Robert","Mike","Jackson"};
Console.WriteLine("Here are{0} of my friends:",friendNames.Lenght);
foreach(string friendName in friendNames)
{
Console.WriteLine(friendName);
}
Console.ReadKey();
}
多维数组
static void Main(string[] args)
{
double[,] hillHeight={{1,2,3,4},{2,3,4,5},{3,4,5,6}};
foreach (double height in hillHeight)
{
Console.WriteLine("{0}",height);
Console.ReadKey();
}
}
数组的排序
int[] nums = new int[] { 98, 54, 54, 322, 43, 23 };
Array.Sort(nums);
for (int i = 0; i < nums.Length; i++)
{
Console.Write(nums[i] + "\t");
}
Console.ReadKey();
数组的反转和forr
int[] nums = new int[] { 98, 54, 54, 322, 43, 23 };
Array.Sort(nums);//排序
//Array.Reverse(nums);//反转
for (int i = nums.Length - 1; i >= 0; i--)
{
Console.Write(nums[i] + "\t");
}
//倒的输出
Console.ReadKey();