Magicodes.NET/Magicodes.Utility/EnumerableUtils.cs at master · magicodes/Magicodes.NET · GitHub

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using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Magicodes.Utility

{

public static class EnumerableUtils

{

/// <summary>

/// 遍历当前对象，并且调用方法进行处理

/// </summary>

/// <typeparam name="T">类型</typeparam>

/// <param name="instance">实例</param>

/// <param name="action">方法</param>

/// <returns>当前集合</returns>

public static IEnumerable<T> Each<T>(this IEnumerable<T> instance, Action<T> action)

{

foreach (T item in instance)

{

action(item);

}

return instance;

}

/// <summary>

/// 遍历N次

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="instance"></param>

/// <param name="action"></param>

/// <returns></returns>

public static int Each<T>(this int instance, Action<int> action)

{

for (int i = 0; i < instance; i++)

{

action(i);

}

return instance;

}

/// <summary>

/// 以“,”拼接字符串

/// </summary>

/// <param name="items"></param>

/// <returns></returns>

public static string Join(this IEnumerable items)

{

return items.Join(",", "{0}");

}

/// <summary>

/// 使用分隔符拼接字符串

/// </summary>

/// <param name="items"></param>

/// <param name="separator"></param>

/// <returns></returns>

public static string Join(this IEnumerable items, string separator)

{

return items.Join(separator, "{0}");

}

/// <summary>

/// 使用分隔符、以及模板字符串拼接字符串

/// </summary>

/// <param name="items">待拼接集合</param>

/// <param name="separator">分隔符</param>

/// <param name="template">字符串格式化模板</param>

/// <returns></returns>

public static string Join(this IEnumerable items, string separator, string template)

{

var sb = new StringBuilder();

foreach (object item in items)

{

if (item == null) continue;

sb.Append(separator);

sb.Append(string.Format(template, item.ToString()));

}

return sb.ToString().RightOf(separator);

}

Magicodes.NET/Magicodes.Utility/EnumerableUtils.cs at master · magicodes/Magicodes.NET · GitHub

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