數組：具有相同類型的若干變量按有序的形式組織起來的一種形式。這些按序排列的同類數據元素的集合稱為數組。
定義數組
int[] 變量名 = new int [n];

string[] myStringArray = new string[6];

int[] myArray = new int[] {1, 3, 5, 7, 9};

數組索引號從0開始
一維數組[相同數據類型]
第一種定義方式
int[] shuzu=new int[5];
for (int i = 0; i <= 5;i++ )//用for循環為shuzu賦值
{
shuzu[i] = i + 1;
}
索引從0開始
賦值
shuzu[0] = 1;
shuzu[1] = 2;
shuzu[2] = 3;
shuzu[3] = 4;
shuzu[4] = 5;

第二種定義方式
int[] shuzu=new int[]{1,2,3,4,5};

Console.WriteLine(shuzu[2]);//3

輸入10個人的年齡,并求和

int[] age = new int[10];int sum = 0;for (int i = 0; i < 10; i++){Console.Write("請輸入第" + (i + 1) + "個人的年齡:");age[i]=int.Parse(Console.ReadLine());//獲取這個數并轉換成數值類型放進數組agesum += age[i];}Console.WriteLine("這10個人的年齡之和是" + sum);Console.ReadLine();

?輸入人名放進數組,輸出第五個人的名字

string[] s = new string[10];for (int i = 0; i < 10;i++ ){Console.Write("請輸入第"+(i+1)+"個人的名字:");s[i] = Console.ReadLine();}Console.Write("第五個人的名字是"+s[4]);Console.ReadLine();

?輸入班級人數,根據人數挨個輸入成績,求平均分

Console.Write("請輸入班級人數:");int a = int.Parse(Console.ReadLine());doudouble[] chengji = new double[a];double sum = 0;for (int i = 0; i < a; i++){Console.Write("請輸入第" + (i + 1) + "個人的成績:");chengji[i] = double.Parse(Console.ReadLine());sum += chengji[i];}Console.WriteLine("這" + a + "個人的平均分是" + sum / a);?

二維數組
int[,] shuzu = new int[3, 4];
int[,] shuzu = new int[,] {
{1,2,3,4},
{5,6,7,8},
{6,7,8,9}
};

輸入班級人數，將每個人的
語文，數學，英語成績輸入二維數組

Console.Write("請輸入班級人數：");int a = int.Parse(Console.ReadLine());double [,] shuzu = new double [a,3];for (int i = 0; i < a; i++){for (int j = 0; j < 3; j++){if (j == 0){Console.Write("請輸入第"+(i+1)+"個人的語文成績：");}if (j == 1){Console.Write("請輸入第" + (i + 1) + "個人的數學成績：");}if (j == 2){Console.Write("請輸入第" + (i + 1) + "個人的英語成績：");}shuzu[i, j] = double.Parse(Console.ReadLine());}}Console.ReadLine();

打印字:王,企:

string[,] shuzu = new string[,] {
{" ","■","■","■","■","■",""},
{" "," "," ","■","","",""},
{" "," "," ","■","","",""},
{" "," ","■","■","■","",""},
{" "," "," ","■"," "," ",""},
{" "," "," ","■"," "," ",""},
{"■","■","■","■","■","■","■"}
};

for (int i = 0; i < 7; i++){for (int j = 0; j < 7; j++){Console.Write(shuzu[i, j]);}Console.WriteLine();}?

string[,] s = new string[,]{
{" "," "," ","●"," "," "," "},
{" "," ","●"," ","●"," "," "},
{" ","●"," ","●"," ","●"," "},
{"●"," "," ","●"," "," ","●"},
{" ","●"," ","●","●","●"," "},
{" ","●"," ","●"," " ," "," "},
{"●","●","●","●","●","●","●"}
};

for (int i = 0; i < 7; i++){for (int j = 0; j < 7; j++){Console.Write(s[i, j]);}Console.WriteLine();}Console.ReadLine();

?

轉載于:https://www.cnblogs.com/xinghun/p/5269301.html

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