轉換枚舉<Integer> for循環從Java到C＃？枚舉<Integer>在C＃中究竟是什麼？

Question

我正在將一個項目從Java轉換爲C＃。我試圖搜索這個，但我遇到的只是有關枚舉的問題。有一個Hashtable htPlaylist，循環使用Enumeration通過鍵。如何將此代碼轉換爲C＃，但使用字典而不是哈希表？

// My C# Dictionary, formerly a Java Hashtable. 
Dictionary<int, SongInfo> htPlaylist = MySongs.getSongs(); 

// Original Java code trying to convert to C# using a Dictionary. 
for(Enumeration<Integer> e = htPlaylist.keys(); e.hasMoreElements(); 
{ 
    // What would nextElement() be in a Dictonary? 
    SongInfo popularSongs = htPlaylist.get(e.nextElement()); 
} 

Answer 1

呃，只是一個foreach循環？對於給定的

Dictionary<int, SongInfo> htPlaylist = MySongs.getSongs(); 

要麼

foreach (var pair in htPlaylist) { 
    // int key = pair.Key; 
    // SongInfo info = pair.Value; 
    ... 
    } 

，或者如果你只想鍵：

foreach (int key in htPlaylist.Keys) { 
    ... 
    }