string[]和int[]之间的转换

string[]转int[]

//源数组
string[] sNums = new[] {
    
    "1", "2"};
//目标数组
int[] iNums;
//转换方法1
iNums = Array.ConvertAll<string, int>(sNums ,delegate (string s) {
    
     return int.Parse(s); });
//转换方法2
iNums = Array.ConvertAll<string, int>(sNums , s => int.Parse(s));
//转换方法3
iNums = Array.ConvertAll<string, int>(sNums , int.Parse);
//转换方法4
iNums = Array.ConvertAll(sNums , int.Parse);

int[]转string[]

int数组转有分隔符的字符串

int[] ints = {
    
     1, 2, 3 };
string[] strs = Array.ConvertAll<int, string>(ints, delegate(int input) {
    
     return input.ToString();});
string result = string.Join(";", strs);
//author:gisrsman
int数组转string[]数组也不需要写循环

int[] ints={
    
    1,2,3,4};
List list = Arrays.asList(ints);
String[] arr = (String[])list.toArray(new String[ints.length]);
//author:gisrsman
int[] ints = {
    
     1, 2, 3 };
string[] output = Array.ConvertAll<int, string>( ints, i => i.ToString() );

.net 的小伙伴看这里

List 转 string :

list<int>： 1,2,3,4,5,6,7  转换成字符串：“1,2,3,4,5,6,7”
List<int> list= new List<int>() {
    
     1, 2, 3, 4, 5, 6, 7 };
string depaid = string.Join(",", list);

string 转 List:

string s = "1, 2, 3";
List<string> list = new List<string>(s.Split(new string[] {
    
     ", " }, StringSplitOptions.RemoveEmptyEntries));
List<string> list = new List<string>(s.Split(','));//或者

List 转 List

var listOfStrings =(new[]{
    
    "4","5","6"}).ToList();
var listOfInts = listOfStrings.Select<string,int>(q =>Convert.ToInt32(q));

List 转List

List<int> l1 = new List<int>(new int[] {
    
     1,2,3 } );
List<string> l2 = l1.ConvertAll<string>(x => x.ToString());

C#中string[]数组和list:

System.String[] str={
    
    "str","string","abc"};
List<System.String> listS=new List<System.String>(str);

从List<System.String>转到System.String[]

List<System.String> listS=new List<System.String>();
listS.Add("str");
listS.Add("hello");
System.String[] str=listS.ToArray();