功能更新
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22
Melskin/Extensions/StringExtensions.cs
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22
Melskin/Extensions/StringExtensions.cs
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#if NETFRAMEWORK
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using System.Diagnostics.Contracts;
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namespace Melskin.Extensions;
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internal static class StringExtensions
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{
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/// <summary>
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/// 使用指定的比较规则,返回指定字符串是否出现在此字符串中的值。
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/// </summary>
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/// <param name="source">源字符串。</param>
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/// <param name="value">要查找的字符串。</param>
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/// <param name="comparison">枚举值之一,用于指定比较中使用的规则。</param>
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/// <returns>如果参数 value 出现在该字符串中,或 value 为空字符串 ("") 则为 true;否则为 false。</returns>
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[Pure]
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internal static bool Contains(this string source, string value, StringComparison comparison)
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{ return source.IndexOf(value, comparison) >= 0; }
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}
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#endif
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