.string的Split方法的使用

这个例子就是通过制定的符号来将词组分开，Splite（分割的字符，分割的份数）

using System;

using System.Collections;

public class Test

{

    public static void Main()

    {

        string data = "Mike,McMillan,3000 W. Scenic,North Little Rock,AR,72118";

        string[] sdata;

        char[] delimiter=new char[]{','};

        sdata = data.Split(delimiter,);

        foreach (string val in sdata)

        {

            Console.WriteLine(val);

        }

    }

}

.string的Join用法，使用指定的连接符来对字符数组进行连接

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string [] sdata=new string[]{"i","want","to","do","it"};

        string data;

        data=String.Join(" ", sdata);

        Console.WriteLine(data);

    }

}

.string的其他方法:

Euqal:用于比较两个字符串的大小，如果相等就返回True,如果不相等就放回false;

Compare To:比较两个字符串的大小，如果根据大小返回-,,；

.StartsWith和EndsWith的用法

这个函数用来判断字符当中是否是以指定字符开始或者结束的

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

       string []strs=new string[]{"dogs","cats","mat","apples","banana"};

        foreach (string val in strs)

        {

            if(val.EndsWith("s"))

                Console.WriteLine(val);

            if(val.StartsWith("a"))

                Console.WriteLine("**"+val);

        }

    }

}

.字符的插入Insert,Remove

可以在指定位置插入一个字符，并返回处理过的字符串

Remove可以在指定位置删除指定长度的字符

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string str = "你好，今天真好";

        str = str.Insert(, "啊");

        Console.WriteLine(str);

        str = str.Remove(, );

        Console.WriteLine(str);

    }

}

.Replace方法

该方法是用于替换字符串中的字符

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string str = "你好啊，我已经完成了";

        str = str.Replace("好", "不");

        Console.WriteLine(str);

    }

}

.文本对齐方式

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string s1 = "hello";

        string s2 = "world";

        string s3 = "goodbyte";
 Console.WriteLine(s1.PadLeft(10));  //用于左对齐(空格补齐左对齐)

        Console.WriteLine(s2.PadRight(10));  //用于右对齐

    }

}

.字符串的大小写转换

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string s1 = "hello";

        s1 = s1.ToUpper();  //转化成大写字符

        Console.WriteLine(s1);

        string s2 = "HelL0";  //转换成小写

        s2 = s2.ToLower();

        Console.WriteLine(s2);

    }

}

.去掉字符串中头部或则尾部的一些其他指定字符,Trim名为修剪，就是修饰用的

该方法只能去掉字符串的头部或则尾部中间的部分不能去掉

using System;

using System.Collections;

using System.Linq;

public class Test

{

    public static void Main()

    {

        string[] htmlComments = new string[]

        {

            "<!-- Start Page !!Number Function -->",

            "<!-- Get user name and password-->",

            "<!-- End Title page -->",

            "<!-- End script -->"

        };

        char[] commentChars=new char[]{'<','!','-','>'};

        for (int i = ; i <=htmlComments.GetUpperBound(); i++)

        {

            htmlComments[i] = htmlComments[i].Trim(commentChars); //将两端都去掉

            //htmlComments[i] = htmlComments[i].TrimEnd(commentChars);  //去掉尾部

            //htmlComments[i] = htmlComments[i].TrimStart(commentChars); //去掉头部

        }

        for (int i = ; i <= htmlComments.GetUpperBound(); i++)

        {

            Console.WriteLine(htmlComments[i]);

        }

    }

}