s3_demo/S3Demo/Helper/SingletonHelper.cs

using System;

namespace S3Demo.Helper
{
	/// <summary>
	/// 单例模式
	/// </summary>
	/// <typeparam name="T">//new()，new不支持非公共的无参构造函数   </typeparam>
	// Token: 0x0200016F RID: 367
	public abstract class SingletonHelper<T> where T : class
	{
		private static T sInstance;
		/// <summary>
		/// 创建获取实例
		/// </summary>
		/// <returns></returns>
		public static T Instance()
		{
			Type typeFromHandle = typeof(T);
			lock (typeFromHandle)
			{
				if (SingletonHelper<T>.sInstance == null)
				{
					SingletonHelper<T>.sInstance = (Activator.CreateInstance(typeof(T), true) as T);
				}
			}
			return SingletonHelper<T>.sInstance;
		}
	}
}