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