About the use of dictionary in C #

1.dictionary is suitable for a unique object, stored in the form of a key-value pair, and the type of the key-value pair is generic;

2.dictionary is similar to the HashMap in Java. (I was originally a Java-learning)

3.dictionary usage: dictionary<key,value>dic = new dictionary<key,value> ();>>> Instantiate a dictionary

3.1: Add the element to the Dictionary:dic. ADD (Key,value);

3.2: Query dictionary for the presence of this element: 1, Query Dic.contanskey (key) by key value;>>> returns a value of type bool

4. Loop through Forech: Forech (var kv in dic) {

Do the action you want ....

}

5. Erase or remove elements:

Emptying: Dic.clear ();

Remove according to key value: Dic.remove (key);

So much for the moment .....

About the use of dictionary in C #