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StringHelper-字符串輔助類
using System;
using System.Collections.Generic;
using System.Text;
using System.Globalization;
using System.Text.RegularExpressions;
namespace Framework
{
/// <summary>
/// 字符串輔助類
/// </summary>
public static class StringHelper
{
/// <summary>
/// 截取字符串的後部分
/// </summary>
/// <param name="source">原字符串</param>
/// <param name="value">拆分字符串</param>
/// <returns>截取後的字符串</returns>
public static string SubstringAfter(this string source, string value)
{
if (string.IsNullOrEmpty(value))
{
return source;
}
CompareInfo compareInfo = CultureInfo.InvariantCulture.CompareInfo;
int index = compareInfo.IndexOf(source, value, CompareOptions.Ordinal);
if (index < 0)
{
return string.Empty;
}
return source.Substring(index + value.Length);
}
/// <summary>
/// 截取字符串的前部分
/// </summary>
/// <param name="source">原字符串</param>
/// <param name="value">拆分字符串</param>
/// <returns>截取後的字符串</returns>
public static string SubstringBefore(this string source, string value)
{
if (string.IsNullOrEmpty(value))
{
return value;
}
CompareInfo compareInfo = CultureInfo.InvariantCulture.CompareInfo;
int index = compareInfo.IndexOf(source, value, CompareOptions.Ordinal);
if (index < 0)
{
return string.Empty;
}
return source.Substring(0, index);
}
/// <summary>
/// 追加字符串，用分隔符分隔，默認分隔符為“,”
/// </summary>
/// <param name="sb">StringBulider對象</param>
/// <param name="append">要追加的字符串</param>
/// <param name="split">分隔符</param>
public static void AppendString(this StringBuilder sb, string append, string split = ",")
{
if (sb.Length == 0)
{
sb.Append(append);
return;
}
sb.Append(split);
sb.Append(append);
}
/// <summary>
/// 替換所有HTML標簽為空
/// </summary>
/// <param name="input">The string whose values should be replaced.</param>
/// <returns>A string.</returns>
public static string RemoveHtml(this string input)
{
var stripTags = new Regex("</?[a-z][^<>]*>", RegexOptions.IgnoreCase);
return stripTags.Replace(input, string.Empty);
}
}
}
最後更新：2017-04-02 06:52:13