string数组转换成int数组，数组转字符串，字符串转list,list集合转字符串，删除数组中为空的元素,list转数组 数组转list

string数组转换成int数组

Array.ConvertAll(string的数组, int.Parse);

数组转字符串，以逗号分隔

string[] 数组 = post.体检编号数组;
                    string str = string.Join(",", 数组);

字符串转list集合

            string aa = "阿松大,古典风格,环境开会,立刻,与i有";
            List bb = aa.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();

            var sNumbers = "1,2,3,4,5,6";
            List numbers = sNumbers.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(Int32.Parse).ToList();

list集合转字符串

public static void main(String[] args) {
        List list = Lists.newArrayList();
        list.add("测试1");
        list.add("测试2");
        list.add("测试3");
        String join = String.join(",", list);
        System.out.println("join{}"+join);
    }

 public static void main(String[] args) {
        List list = Lists.newArrayList();
        list.add("测试1");
        list.add("测试2");
        list.add("测试3");
        String join = Joiner.on(",").join(list);
        System.out.println("join{}"+join);
    }

 

删除数组中为空的元素

string[] strArray = { "","111","","222","","333"};   

 //使用lambda表达式过滤掉空字符串

 strArray = strArray.Where(s=>!string.IsNullOrEmpty(s)).ToArray();

list转数组  数组转list

List listS=new List(); 
listS.Add("str"); 
listS.Add("hello"); 
string[] str=listS.ToArray();


string[] str={"str","string","abc"}; 
List listS=new List(str);

将数组加入到list中

//定义一个byte类型的list  
List byteList = new List();  
//定义一个长度为1024的byte数组  
byte[] byteArr = new byte[1024];  
//把byte数组放入list中  
byteList.AddRange(byteArr);