1. String > String[] Strings="a,b,c,d,e";String[]sArray=s.Split(','); 1. 2. 2. String[] > String string[]sArray={"a","b","c","d","e"};strings=String.Join(",",sArray); 1. 2. 3.String[] > List<String> string[]sArray={"a","b","c","d","e"};List<Stri...
string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素 string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素 5. public...
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<string>: System.String[] str={"str","string","abc"}; List<System.String> listS=new List<System.String>(str); 从List<System.String>...
end) //以区间beg;end(不包含end)内的字符作为字符串s的初值 string s(str,stridx) //str为别的string,从strid开始到末尾的部分拷贝(左闭 string s(const string& str, size_type pos,strlen) //从pos开始的len个字符,不足不补 string s(const char *s) //将C字符串作为s...
C# List.Contains(string) Not Working 發行項 2015/07/14 QuestionTuesday, July 14, 2015 11:55 AMHello,I'm pulling data from a table and throwing values into a list. I'm trying not to have duplicates in the list but the .Contains() method doesn't seem to be working. I'm pretty ...
① String:hello world; ② Hash:{name:"tom",age:24}; ③ List:[A → B → C]; ④ Set:{a, b, c}; ⑤ SortedSet:{a:1, b:2, c:3}; 2、其他常用数据类型 ...
4.string的三种遍历 4.1迭代器 代码语言:javascript 复制 voidtest2(){strings("abc");list<int>lt(s.begin(),s.end());list<int>::iterator it=lt.begin();while(it!=lt.end()){cout<<*it<<" ";it++;}cout<<endl;}intmain(){test2();return0;} ...
List<string> list = new List<string>() { "a", "b", "c", "d" }; bool isExists = list.Exists(x => x == "a"); 由于Exists方法的参数是一个委托,所以其执行时间比Contains方法要长。但是,当集合中元素比较多且查找条件复杂时,Exists方法的执行时间可能比Contains方法更短。 3、Any方法 Any方...
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List<string> names = ["<name>","Ana","Felipe"];foreach(varnameinnames) { Console.WriteLine($"Hello{name.ToUpper()}!"); } 将<name>替换为自己的名称。 保存 Program.cs。 在控制台窗口中键入dotnet run,试运行看看。 你已创建了一个字符串列表,在该列表中添加了三个名称,并打印了所有大写的名...