C # Array Brief

Array declaration and assignment: int[] a=new int[6];

Array initializer: int[] a=new int[2]{1,3};

Array initializer simplified version: int[] a={1,3};

Array Initial value: Number type: 0

Bool:false
Char:
String:null

Suppose there is an array of nums, with a length of 5, to sort it in ascending order

Array length: A. Length;

Array sorting:

First, Exchange sort

Sorting ideas:　

1. In the range of subscript 0-4, the smallest number in the range is referred to subscript 0
2. In the range of subscript 1-4, the smallest number in the range is referred to subscript 1
3. In the range of subscript 2-4, the smallest number in the range is referred to subscript 2
4. In the range of subscript 3-4, the smallest number in the range is referred to subscript 3
5. Sort done!

Implementation code:

　　

 for(inti =0; I < Nums. Length-1; i++){    //in the I-(nums. LENGTH-1) within the range, the smallest number in the range is referred to I     for(intj = i +1; J < Nums. Length; J + +)    {        if(Nums[i] >Nums[j]) {        //Exchange            inttemp =Nums[i]; Nums[i]=Nums[j]; NUMS[J]=temp; }    }}                    

Second, bubble sort

Sorting ideas:

• Sink the largest number to the bottom

Or

• Take the smallest number to the top

Implementation code:

 for(inti = Nums. Length-1; i >0; i--){    //within the range of 0-i, the largest number in the range is sunk to I     for(intj =0; J < I; J + +)    {        if(Nums[j] > nums[j+1])        {            //Exchange            inttemp =Nums[j]; NUMS[J]= nums[j+1]; Nums[j+1] =temp; }    }}

　　

C # Array Brief