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StringHelper.cs
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43 lines (38 loc) · 1.24 KB
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using System;
using System.Collections.Generic;
using System.Linq;
namespace Blog.Core.Common.Helper
{
public class StringHelper
{
/// <summary>
/// 根据分隔符返回前n条数据
/// </summary>
/// <param name="content">数据内容</param>
/// <param name="separator">分隔符</param>
/// <param name="top">前n条</param>
/// <param name="isDesc">是否倒序（默认false）</param>
/// <returns></returns>
public static List<string> GetTopDataBySeparator(string content, string separator, int top, bool isDesc = false)
{
if (string.IsNullOrEmpty(content))
{
return new List<string>() { };
}
if (string.IsNullOrEmpty(separator))
{
throw new ArgumentException("message", nameof(separator));
}
var dataArray = content.Split(separator).Where(d => !string.IsNullOrEmpty(d)).ToArray();
if (isDesc)
{
Array.Reverse(dataArray);
}
if (top > 0)
{
dataArray = dataArray.Take(top).ToArray();
}
return dataArray.ToList();
}
}
}