创建
using System;
namespace StringApplication
{
class Program
{
static void Main(string[] args)
{
//字符串，字符串连接
string fname, lname;
fname = "Rowan";
lname = "Atkinson";
string fullname = fname + lname;
Console.WriteLine("Full Name: {0}", fullname);
//通过使用 string 构造函数
char[] letters = { 'H', 'e', 'l', 'l','o' };
string greetings = new string(letters);
Console.WriteLine("Greetings: {0}", greetings);
//方法返回字符串
string[] sarray = { "Hello", "From", "Tutorials", "Point" };
string message = String.Join(" ", sarray);
Console.WriteLine("Message: {0}", message);
//用于转化值的格式化方法
DateTime waiting = new DateTime(2012, 10, 10, 17, 58, 1);
string chat = String.Format("Message sent at {0:t} on {0:D}", waiting);
Console.WriteLine("Message: {0}", chat);
Console.ReadKey() ;
}
}
}
编译结果：
Full Name: RowanAtkinson
Greetings: Hello
Message: Hello From Tutorials Point
Message: Message sent at 17:58 on Wednesday, 10 October 2012
属性
| 属性 | 描述 |
|---|---|
| Chars | 在当前 String 对象中获取 Char 对象的指定位置。 |
| Length | 在当前的 String 对象中获取字符数。 |
方法
string s1 = "00wqw12";
string s2 = "0012";
Console.WriteLine(string.Compare(s1, s2)); //1第一个不相同的字符大小
Console.WriteLine(string.Concat(s1,s2)); //连接
Console.WriteLine(string.Copy(s1)); //copy
Console.WriteLine(string.Equals(s1,s2)); //相等
Console.WriteLine(string.IsNullOrEmpty(s1));//为空
Console.WriteLine(string.IsNullOrWhiteSpace(s1));//空或空格
Console.WriteLine(string.Join(",", new string[] { s1, s2 }));//用,连接
Console.WriteLine(s1.Clone()); //clone
Console.WriteLine(s1.Contains(s2)); //包含
Console.WriteLine(s1.Count()); //数量
Console.WriteLine(s1.Insert(1,s2)); //插入
Console.WriteLine(s1.Length);
Console.WriteLine(s1.PadLeft(7,',')); //从左填充‘,’,使长度达到7
Console.WriteLine(s1.Remove(1)); //从1开始删除后面所有
Console.WriteLine(s1.Remove(1,2)); //从1开始删除两个字符
Console.WriteLine(s1.Replace('0','_')); //0字符替换为_字符
Console.WriteLine(s1.Replace("0","_")); //0字符串替换为_字符串
Console.WriteLine(s1.Reverse()); //反转字符串
Console.WriteLine(s1.Split(',')); //分割字符串成一个字符数组
Console.WriteLine(s1.Substring(2,3)); //从2开始截取三个字符
Console.WriteLine(s1.ToCharArray()); //字符串转为字符数组
Console.WriteLine(s1.ToLower()); //小写
Console.WriteLine(s1.IndexOf('0')); //第一个字符0的位置
Console.WriteLine(s1.IndexOf("00")); //第一个字符串
Console.WriteLine(s1.LastIndexOf('0')); //最后一个
