C#扩展String类，自定义ToFormat方法格式化字符串

C#扩展String类，自定义ToFormat方法格式化字符串，可以以string.ToFormat的形式格式化字符串，使用非常方便

using System;

public class Example
{
    public static string ExampleString = "Hello {0}".ToFormat("you!");
}

/// <summary>
/// Helper function to format a string without having to type 'string.format(...'
/// </summary>
public static class StringExtensionMethods
{
    public static string ToFormat(this string s, object arg0)
    {
        return string.Format(s, arg0);
    }

    public static string ToFormat(this string s, object arg0, object arg1)
    {
        return string.Format(s, arg0, arg1);
    }

    public static string ToFormat(this string s, object arg0, object arg1, object arg2)
    {
        return string.Format(s, arg0, arg1, arg2);
    }

    public static string ToFormat(this string s, params object[] args)
    {
        return string.Format(s, args);
    }

    public static string ToFormat(this string s, IFormatProvider provider, string format, params object[] args)
    {
        return string.Format(provider, s, args);
    }
    
}