如何从Microsoft.Extensions.Caching.Memory.MemoryCache获取ICacheEntry

using Microsoft.Extensions.Caching.Memory;

var cache = new MemoryCache(new MemoryCacheOptions());

var cacheEntryOptions = new MemoryCacheEntryOptions()
    // 设置缓存项的优先级
    .SetPriority(CacheItemPriority.Normal)
    // 设置缓存过期时间
    .SetAbsoluteExpiration(TimeSpan.FromMinutes(30))
    // 设置缓存项被移除时的回调方法
    .RegisterPostEvictionCallback((key, value, reason, state) =>
    {
        // 缓存项被移除时执行的逻辑
    });

var cacheEntry = cache.CreateEntry("myKey");

// 设置缓存项的值
cacheEntry.Value = "myValue";

// 执行缓存项的操作
cacheEntry.PostEvictionCallbacks.Add(new PostEvictionCallbackRegistration()
{
    EvictionCallback = (key, value, reason, state) =>
    {
        // 缓存项被移除时执行的逻辑
    }
});

// 设置缓存项的过期时间等选项
cacheEntry.SetOptions(cacheEntryOptions);

// 提交缓存项到缓存中
cacheEntry.Dispose();