Common methods of Swift dictionaries

var dict1 = [1: "A", 2: "B", 3: "C", 4: "D", 5: "E"];
var test1 = ["Key1": "Hello", "Key2": "Swift", "Key3": "Learning", "Key4": "Dictionary", "Key5": "Value"]
To take a value according to the key
Print (test1["Key1"]);
Number of dictionary elements
Print (Test1.count);
Add a dictionary element
DICT1[6] = "F";
test1["key"] = "test";
Delete an element in a dictionary
Test1.removevalue (forkey: "Key1");
Modifying a dictionary element
test1["key"] = "Li ping";
Traverse
for (Key,value) in test1{
Print ("key\ (Key), value,\ (value)");
}
For TestKey in test1.keys{
Print (TestKey);
}
For TestValue in test1.values{
Print (TestValue);
}
Convert a key or value in a dictionary to an array
Let Textkeyarr = Array (Test1.keys);
Print (Textkeyarr);
Let Textvaluearr = Array (test1.values);
Print (Textvaluearr);

Common methods of Swift dictionaries