C#学习笔记

enum typeName
{
value 1,
value 2,
value 3,
.
.
.
value N
}
typeName varName;//声明
varName=typeName.value//赋值

struct route
{
public orientation direction;
public double distance;
}
route myRoute;
myRoute.direction = orientation.north;
myRoute.distance = 2.5;

int[] myArrary={5,5,5,5,5};//方法一
int[] myArray = new int[5];//方法二，对于数值类型其被初始化为0
int[] myArray = new int[5]{1,2,2,2,2};//方法三
const int arraySize = 5;
int myArray = new int[arraySize]{1,1,1,1,1};

<baseType>[,,]<name>;
//赋值
double[,]hillHeight = new double[3,4];//方法一
double[,] hillHeight = {{1,2,3,4},{2,2,2,2},{3,2,3,2}};//方法二

//声明
int[][] intArray;
//初始化方法一
intArray = new int[2][];
intArray[0] = new int [3];
intArray[1] = new int[4];
//初始化方法二
intArry = new int[3][]{new int[]{1,2,3},new int[]{1},new int[]{1,2}};
//初始化方法三
int[][] intArray = {new int[]{1,2,3},new int[]{1},new int[]{1,2}};